UNN Post UTME Questions and answers 2023
Read the passage carefully and answer the questions that follow. Developments in electronic science have transformed the art of record-keeping in the modern age. Traditionally, records of events were kept only in people’s minds. It depended very much on the retentive power of human memory.
This was extremely dangerous as people either forgot events wholly or in part, or deliberately falsified details to suit their various interests. Interminable arguments were thus the order of the day. Even writing which replaced mental recording was not entirely free from these shortcomings as untruths could be written as true records either willingly or inadvertently. With the adve t of the electronic memory, however, these dangers now show not only what happened, but also who did or said what, including how and when.
- The author believes that electronic
recording is _____.
- superior to mental recording.
- inferior to both mental recording and
writing.
- superior to both mental recording and
writing.
- inferior to only writing.
- The writer believes that the art of record
keeping has _____.
- improved over the years
- endangered the art of writing
- changed human memory.
- overcome all the problems facing it
- How many stages of development did the
writer mention while discussing the art of
record keeping?
- Two
- Three
- Four
- Five
- According to the author, human memory is
unreliable because people _____.
- die and we forget what they said
- forget events or tell lies
- do not always know when events happen
- do not always know who did what and
when
- From the passage, we gather that writing
is almost
- as unreliable as human memory
- as reliable as electronic memory
- more reliable than electronic recording
- not to be compared to any other recording
systems
LEXIS AND STRUCTURE
In questions 6 and 7, select the option
that best explains the information
conveyed in the sentence.
- You are driving too fast for safety.
- That speed is all right and safe
- That speed is not fast enough for safety
- That speed is not entirely safe
- You should drive faster to ensure safety
- For all I care, the man may be dead.
- I am not sure that the man is dead
- I am not interested in his death
- I very much care in case he is dead
- I am ignorant of the man’s death.
In each of questions 8-11, choose the most
appropriate option opposite in meaning to
the words in italics.
- The priest was invited to consecrate the
new building.
- destroy
- abuse
- tarnish
- pollute
- A majority of those who sat for the last
jamb examination are sanguine of success.
- hopeful
- unsure
- pessimistic
- disheartened
- When we woke up this morning, the sky
was overcast.
- cloudy
- clear
- shiny
- brilliant
- Enemies of progress covertly strife to
undermine the efforts of this administration.
- secretly
- boldly
- consistently
- overtly
In each of questions 12-15, fill the gap
with the most appropriate option from
the list following gap.
- The boy is constantly under some that he
is the best student in the class.
- elusion
- delusion
- illusion
- allusion
- Her parents did not approve of her
marriage two years ago because she has not
reached her ______.
- maturity
- puberty
- majority
- minority
- Our teacher ______ the importance of
reading over our work before submission.
- emphasized on
- emphasized
- layed emphasis on
- put emphasis
- Young men should not get mixed
______politics.
- in with
- up with
- up in
- on with
ENGLISH 2005/2006
ANSWERS [SECTION ONE]
- C 2. A 3. B 4. B 5. A 6. C 7. B 8. D 9. C
- C 11. D 12. B 13. C 14. B 15. C
COMPREHENSION
INSTRUCTION: Read the passage carefully
and answer the questions that follow.
The market was old, timeless Africa, loud,
crowded and free. Here, a man sat making
sandals from old discarde4 motor-car tyres;
there another worked at an old sewing
machine, making a nightgown-like affair
while the buyer.
waited; a little further on, an old goldsmith
worked at his dying art, but using, now,
copper filings instead of gold) to fashion the
lovely trinkets women wear the world over;
elsewhere a woman sold country cloth
fashioned with such fine art that only Africans
think of it as a garment of utility. Trade was
slow and loud everywhere. This was as much
a social as a shopping centre. For an excuse
to spend the day at the market, a woman
would walk all the way from her village to
town with half a dozen eggs. She would
spread them on a little bit of ground for
which she paid rent. Through the day she
would squat on the ground and talk to others
who came for the same reason. She would
refuse to sell her wares till it was time to
leave. They were the excuse for her being
there. There were many like that. But there
were many others for whom trade was an
earnest business. Whether in earnest or as
an excuse, the traders were boisterously
free, loud-mouthed and happy. The laughter
of the market was a laughter found nowhere
else in all the world.
- According to the passage, the woman with
half a dozen eggs in the market _____.
- is doing earnest business.
- comes purposely to enjoy herself.
- is like other traders in the market.
- does not like her husband at home.
- “An old goldsmith worked on his dying art”
means that the
- goldsmith’s trade was no longer popular
- goldsmith was old and must soon die
- goldsmith knew well the art of dying
- goldsmith now used copper filings
- Which of the following titles BEST reflects
the content of the passage?
- Market scene
- An African market scene
- Trading in the market
- An African shopping centre
- Which of the following statements BEST
illustrates the impression the writer has
created about the market?
- An old, timeless and scantily populate
place.
- A place people come to for business or
pleasure.
- An old, crowded and discarded place.
- A place for all types of wares and
laughter.
- Which of the following groups of items
may be found for sale in the market?
- Motorcar tyres, eggs and gold trinkets
- Eggs, sandals and gold trinkets
- Country cloth, gold trinkets and sandals
- Country cloth, copper trinkets and eggs
LEXIS AND STRUCTURE
In each of questions 6-9, choose the
option nearest in meaning to the word
or phrase in italics.
- Much of his chagrin, he did not win the
race.
- stupefaction
- disappointment
- shock
- surprise
- Traditional rulers are not supposed to be
involved in partisan politics.
- dirty
- party
- modern
- surprise
- Mr. Adamu is a dominant partner in our
business.
- a prominent
- an important
- an outstanding
- an influential
- The patient disregarded the advice of the
doctor.
- ignored
- disobeyed
- questioned
- respected
In each of questions 10-12, till the gap with
the most appropriate option from the list
following the gap.
- The lawyer pleaded-with the judge to
____ justice with mercy.
- tempar
- temper
- tamper
- taper
- So far, no… [A. effected B. efficient C.
efficacious D. effectual] drug has been
discovered as a cure for the AIDS diseases.
- The student leaders were ____punished.
- unduly
- undully
- unduely
- unduelly
In each of questions 13-14, choose the
word that has the same consonant
sound as the one represented in the
letter underlined.
- Vision
- Mansion
- Profession
- Cession
- Precision
- Chair
- Chancellor
- Chiffon
- Chalet
- Champaign
In the following question, the words in
capital letters have the emphatic stress.
Choose the option that best fits the
expression in the sentences.
- The secretary enjoys travelling AT
NIGHT.
- Did the secretary enjoy travelling by day
- Does the secretary enjoy travelling by day
- Who enjoys travelling by night
- Does the secretary hate travelling at night
USE OF ENGLISH 2005/2006
SECTION TWO ANSWERS
- B 2. A 3. B 4. B 5. D 6. B 7. B 8. B 9. A
- B 11. C 12. A 13. D 14. A 15. B
- Find n if 31410 — 2567 = 340n
- 7
- 8
- 9
- 10
- What is the difference between 1.867551
correct to four significant figures and
1.867551 correct four decimal places?
- 5 x 10-1
- 4 x 10-4
- 5 x 10-4
- 10 x 10-3
- In an examination, all the candidates
offered at least one of English and French, if
52% offered French and 65% offered English,
what percentage offered French only?
- 17%
- 35%
- 4%
- 45%
- Simplify
6?3+5?2−8?
2?2+?−3
- 3x-1
- 1- 3x
- 3x + 1
- -(3x + I)
- Find the range of values. of x satisfying
the inequalities 2x – 5 < 7 and 25 + 2x > 15
- 5<x<6
- -5 < x < 6
- -6 < x < 5
- -6 < x < -5
- If the 8th term of an A.P is three times the
second term and the sum of the first three
terms is 18, find the first term of the A,P.
- 4
- 2
- 8
- 3
- Find the sum to infinity of the series 4 + 3
+ 9 4⁄ + 27
16 ⁄ + ⋯.
- 16
- 16
3⁄
- 1
- 8
- A chord of a circle of radius 10cm is drawn
8cm from the centre of the circle. Find the
length of the chord.
- 6 cm
- 2√41??
- 12cm
- √41 ??
- Find the equation of the line which passes
through (-2, 1) and is perpendicular to the
line 4x-2y+1=0
- 2y – x – 4= 0
- 2y+x =0
C.2y—x= 0
- y — 2x-5 =0
- If a line is parallel to the line
2y —rx +4=0 and perpendicular to the line
4y+ x —28=0 then the value of r is
- 4
- 8
- -8
- -4
11.
Score
0
1
2
3
4
5
No of
Student
2
8
14
16
12
8
The distribution above shows the scores of
sixty students in a class test. What
percentage of the students scored at least 3?
- 60%
- 36%
- 66%
- 40%
- The first derivative of y = (2 + 3x)4 at
x=-1 is
- 12
- -12
- 4
- -4
- The minimum value of (x) = x2-4x+5 in
the interval [1,-1] is
- 12
- -12
- 4
- -4
Score
1
2
3
5
6
Frequency 3
6
7
x
4
The table above shows the shows the marks
scored by a group of students in a class test.
If the mean score is 3.4, find x.
- 3
- 4
- 5
- 2
- A company is to select three different
handset phones from five different types of
Nokia brand and two different types of
Samsung brand. In how many ways can the
company choose the handsets, so as to
include at least one Samsung brand?
- 15
- 25
- 35
- 45
ANSWERS TO
MATHEMATICS 2005/2006
- A 2. B 3. B 4. C 5. B 6. A 7. A 8. C 9. B
- B 11. A 12. B 13. A 14. C 15. B Which of the following represents the
correct t precision if the length of a piece of
wire is measured with a meter rule?
- 35mm
- 35.0mm
- 35.00mm
- 35.01.mm
- To keep a vehicle moving at a constant
speed V requires power P, from the engine.
The force provided by the engine is
- P/V
- V/2
- PV
- P/V
- Which of the following statements give the
TRUE difference between evaporation and
boiling?
- Evaporation occurs at all temperatures
while boiling occurs at a fixed temperature
for a given pressure
- Evaporation is a surface phenomenon
while boiling is an interior phenomenon
III. Evaporation is affected by surface area
while boiling is not
- I and II only
- I and III only
- II and III only
- I, II and III only
- Equal masses of copper and rubber are
raised to the same temperature. After
sometime, the copper was observed to be at
a lower temperature because _____
- the specific heat capacity of copper is
lower than that of rubber.
- copper expands more than rubber.
- the specific heat capacity of rubber is
lower than that of copper.
- rubber expands more than copper.
- Which of the following statements is
correct about a long-sighted boy who does
not put on glasses?
- He cannot see distant objects clearly
- Rays of light from a close object are
focused in front of the retina
- His eyeball is too long
- A 12V battery has an internal resistance of
0.5Ω. If a cable of 1.0Ω resistance is
connected across the terminals of the
battery, the current drawn from die battery is
- 16.0A
- 8.0A
- 0.4A
- 0.4 A
- If two parallel wires carry currents flawing
in the same direction, the conductors will
- attract each other
- repel each other
- both move in the same direction
- have no effect on each-other
- From the generating station to each substation, power is transmitted at a very high
voltage so as to reduce
- eddy current loss
- hysteresis loss
- heating in the cable
- magnetic flux leakage
- Two tuning forks of frequencies 256Hz and
260 Hz are sounded close to each other.
What.is. the frequency of the beats
produced?
- 516Hz
- 258Hz
- 4 Hz
- 300Hz
- The fundamental frequency of vibration
of’ a sonometer wire may be halved by A.
doubling the length of the wire
- doubling the mass of the wire
- 240V
- 60V
- A transformer has a primary coil with 500
turns and a secondary coil with 2500 turns
and a secondary coil with 2500 turns. When
the voltage input to the primary is 120V, the
output is ____.
- 6000 V
- 600 V
- 240 V
- 60 V
- The principle of operation of an induction
coil is based on
- Ohm’s law
- Ampere’s law
- Faraday’s law
- Coulomb’s law
- 4g of radioactive material of half-life
10days is spilled on a laboratory floor. How long would it take to disintegrate 3.5g of the
material?
- 11/4 days
- 8 1/4 days
- 30 days
- 80 days
- Which of the following statements
correctly describe(s) cathode rays?
- They consist of tiny particles carrying
negative electric charges
- They are deflected in a magnetic field but
not in an electric field
III. They consist of fast-moving neutrons and
are deflected in an electric field
- I only
- II only
- I and II only
- II and III only
- Which of the following is most strongly
deflected by a magnetic field?
- γ-rays
- ∝-rays
- β-particles
- X-rays
ANSWERS TO PHYSICS
2005/2006 QUESTIONS
- B 2. A 3. B 4. A 5. D 6. B 7. A 8. C 9. C
- A 11. B 12. C 13. C 14. A 15. C
9
- Which of the following is a mixture?
- Sodium chloride
- Sea water
- Iron filings
- Granulated sugar
- Two elements, X and Y, have atomic
numbers E and 13 respectively. The formula
for the possible compound found between X
and Y is
- Y2X2
- XY2
- X3Y2
- X2Y3
- 3g of a mixture of CaO and CaCO3 was
heated to constant mass. If 0.44g of CO2 was
liberated, calculate the percentage of CaO in
the mixture.
- 33.3%
- 50%
- 66.67%
- 25%
- An alkanoic acid has a molecular mass of
- Its molecular formula is
- C4H9COOH
- C5H11COOH
- C3H5COOH
- C3H7COOH
- If the rate of diffusion of oxygen is taken
as 1 cms-1
, what will be the rate of diffusion
of methane who relative molecular mass is
16?
- 2.0
- 1.8
- 1.4
- 1.0
- An increase in temperature causes an
increase in the pressure of a gas in a fixed
volume due to an increase in the
- Number of molecules of the gas
- Density of the gas molecules
- Number of collisions between the gas
molecules
- Number of collisions between the gas
molecules and the walls of the container
- In electrolysis, the chemical reaction which
takes place at the anode is
- dissociation
- hydrolysis
- oxidation
- reduction
- In the electrolysis of brine, it is essential
to prevent the mixing of the products
because
- sodium and chlorine readily combine
- chlorine gives a green coloration
- chlorine readily recombines with sodium
hydroxide
- sodium hydroxide Corms a carbonate in
the presence of air and ‘chlorine
- In what way is equilibrium constant for the
reaction related to that of the reverse
reaction?
- The two equilibrium constants are identical
- The product of the two is always greater
than one
- The product of the two is expected to be
one
- The addition of the two is expected to be
one
- When chlorine water is exposed to
sunlight, the gas evolved is
- Cl2
- O2
- HCL
- CO2
- PbCl2 does not dissolve in liquid ammonia
while AgCl does. This is because
- Pb is not a transition metal while Ag is
- Ag is not a transition metal while Pb is
- AgCl turns grey on exposure to light a
- AgCl dissolves in hot water
- When sodium hydroxide pellets are
exposed to the atmosphere, the first gas they
absorb is
- CO2
- Water vapour
- Oxygen
- Nitroge2-ethy1-4-methyl pent-2-ene
- 3,5 dimethyl hex-3-ene
- 2,4-dimethyl hex-3-ene
- 3-methyl 2-ethyl hex-2-ene
- Which of the following is NOT a
monomer?
- Which of the following behaves like
ethyne?
- CH3CH=CHCH3
- CH3CH2CH2CH2CH=CH2
- CH2=CH2
- CH3CH3
ANSWERS TO CHEMISTRY
2005/2006
- A 2. B 3. C 4. D 5. C 6. D 7. C 8. D 9. C
- B 11. A 12. A 13. C 14. A 15. Crep.ng
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11
COMPREHENSION
INSTRUCTION: Read the passage carefully
and answer the questions that follow.
The approach to the university is being
restructured to ease the flow of traffic, give
better security and provide an appropriate
introduction to a seat of higher learning. The
Works and Services Complex is also under
construction, and we intend to move into the
completed (major) part of it within the next
few weeks.
All these projects are being executed with an
eye to aesthetics, for we recognize the
important influence of a beautiful and healthy
environment on its inhabitants and feel that a
cluster of buildings on a small space such as
we have, should be so well designed as to
have a beneficial psychological and
sociological effect on all members of the
community.
I have gone to these lengths to itemize these
examples of current development for two
main reasons. Firstly, to advise you that the
road diversions and other physical
inconveniences currently being experienced
will be on the increase because of intense
development activity. We therefore appeal to
you to bear with us in full knowledge and
consolation that such inconveniences are
temporary and will soon yield final tangible
results. Secondly, to demonstrate our
capacity for executing approved projects with
dispatch. and to assure Government that we
are up to the task. Indeed. I can assure
Government that its ability to disburse funds
to us will be more than matched by our
capacity to collect and expend them on
executing various worthy projects in record
time.
- From the passage, we can gather that
- there is not much consideration for the of
the inhabitants
- there is deliberate effort to inconvenience
the people
- buildings are put up anyhow
- projects are carried out without approval
- the inconveniences suffered by inhabitants
will be for a while
- Unless it can be shown that money voted
for projects can be spent on them in good
time.
- the development activity will not be
intense
- it will not be easy to convince the
government of our executive ability
- it will not be difficult to ask government
for funds
- our final result will be unreliable
- the road diversions and other
inconveniences will continue
- An eye on aesthetics in this passage
means ______.
- regard for space
- beneficial psychological effects
- regard for health
- consideration for beauty
- a cluster of buildings
- In this passage, the author tries to explain
why.
- it is necessary to establish the Works and
Services Complex in the University
- beauty should not be taken into
consideration when building on such a small
space as we have
- the gateway to the university is being
rebuilt
- a major part of the project should be
completed in the next few weeks
- visitors should be debarred from using the
gates in the meantime
- Which of these is NOT among the reasons
given by the author for enumerating the
examples of the current development?
- To show that we are capable of executing
approved projects
- To convince the government that we can
be trusted with tasks
- The inconvenience currently being
experienced will go on indefinitely.
- We are fully aware of the inconveniences
being caused but we do not want you to
complain.
- We have the capacity to complete worthy
projects within the scheduled time.
In each of questions 6-15, fill the gap with
the most appropriate option from the list
following the gap.ng
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12
- Some smugglers have created a road
diversion in order to ______ the new import
duty.
- circumflex
- circumscribe
- circumspect
- circumvent
- It happened that our dog is male but …
are all females.
- their’s
- there’s
- theirs’
- theirs
- We can use the telephone; the lines are all
_____.
- on
- off
- up
- down
- Ayayi cashed _______ our boy’s defensive
error to score the equalizer. A. on
- in with
- in on
- in
- I heard that Italy’s victory at the world
cup _____ the radio.
- in
- on
- over
- from
- He travels very often as if he does not
know that a car runs ______ Petrol. A. with
- by
- on
- in
- We were all delighted when the lady
____ a bouncing baby boy.
- delivered
- brought forth
- gave birth to
- was delivered of
- Although the problem was simple,
_________ student were able to solve it.
- few
- a few
- a lot of
- little
- Some students____ believed they can
succeed in exams without working hard.
- many a times
- many at time
- many a time
- many at times
- The defendant claimed that he had been
_______ making a statement.
- coarced
- coaxed
- coarsed
- coerced
USE OF ENGLISH
2006/2007 ANSWERS
- E 2. B 3. D 4. D 5. C 6. D 7.D 8. A 9. C
- B 11. C 12. D 13. A 14. C 15. D
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13
Indicate the correct option in each of the
following questions
- Which of the following is a set of vectors?
- force, mass and momentum
- acceleration, velocity and momentum
- mass, weight and density
- mass, volume and density
- A catapult used to hold a stone of mass
500g is extended by 20cm with an applied
force, F. If the stone leaves with a velocity of
40m/s, the value of F is
- 4.0 x 102 N/m2
B.2.0 x 103 N
C.4.0 x 103 N
D.4.0 x 104 N
- A parachute attains terminal velocity when
- its density is equal to the density of air
- the Viscous force of air and up thrust
completely counteract its weight
- it expands as a result of reduced external
pressure
- the viscous force of the air is equal to the
sum of the weight and upthrust
- An electrical heater is used to melt a block
of ice, mass 1.5kg, If the heater is powered
by a 12V battery, and a current of 20A flows
through the coil, calculate the time taken to
melt the block of ice at 0°C. (specific latent
heat of fusion of ice = 336 x103
J/kg)
- 76.0 min
- 35.0 min
- 21.0 mn
- 2.9 min
- 200g of water at 90°C is mixed with same
quantity of water at.30°C. What is the final
temperature?
- 50°C
- 60°C
- 70°C
- 80°C
- The equation PxVyTz = constant is Charles
law when
- x=1, y=1, z=1
- x=0, y=1, z=1
- x=1, y=0, z=1
- x=0, y=1, z=1
- For short-sighted person, light rays from a
point on a very distant object is focused
- in front of the retina
- behind the-retina
- behind the retina by a diverging lens
- in front of the, retina a distance 2F from
the lens
- Dispersion of light by a glass prism is due
to the
- different hidden colours of the glass
- different speeds of various colours in glass
- defect in the glass
- high density in glass
- To produce an enlarged and erect image
with a concave mirror, the object must be
positioned
- between the principal focus and the centre
of curvature
- at the principal focus
- between the principal focus and the pole
- beyond the centre of curvature
- To convert an ac dynamo to dc dynamo,
the
- number of turns of the coil is increased
- slip rings are replaced with a split-ring
commutator
- number of turns of the” coil is reduced
- split-ring commutator is replaced with slip
rings
- In an AC circuit that contains only a
capacitor, the voltage
- lags behind the current by 90°
- leads the current by 90°
- lags behinds the currents by 180°
- leads the current by 180°
- The purpose of dielectric material in a
parallel plate capacitor is to
- increase the capacitance
- decrease its capacitance
- insulate the plates from each other
- increase the magnetic field between plate
- A substance has a half-life of 3min. After
6m the count rate was observed to be 600.
What its count rate at zero time?
- 200
- 1200
- 1600
- 2400
- If light with photon energy 2eV is
incident of surface of a metal with work
function 3eV, then
- no electron will be emitted
- the few electrons emitted will have
maximum kinetic energy of 1eV
- the few electrons emitted will have a
maximum kinetic energy of 3eV
- many electrons will be emitted with
maximum kinetic energy of 5eV
- In a nuclear fusion experiment, the loss
of m amount to 1.0x 10-6 kg. The amount of
energy obtained from the fusion (speed of
light = 3.0 x 106m/s) is
- 3.0 x 10-4 J
- 3.0 x 10-4 J
- 9.0x 10-4
J
- 9.0 x1010 J
ANSWERS TO PHYSICS
2006/2007
- B 2. B 3. B 4. B 5. B 6. B 7. A 8. B 9. D
1p.ng
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15
- A mixture of iron and sulphur can be
separated. by dissolving the mixture in
- Steam
- Dilute hydrochloric acid
- Dilute sodium hydroxide
- Benzene
- If 67.5g of oxide of lead was reduced to
61.2g of metal, calculate the formula of the
oxide. (Pb = 207, 0 = 16)
- PbO
- PbO3
- Pb3O4
- Pb2O3
- Calculate the minimum volume of the
oxygen that is required for complete
combustion of a mixture of 20 cm3 of CO and
10 cm3 of hydrogen.
- 5 cm3
B.10 cm3
- 15 cm3
- 20 cm3
- HNO3 + H2O ⇌ H3O + ??3−
In the reaction above, ??3− is the
- Conjugate acid
- Acid
- Conjugate base
- Base
- The pH range of a neutralization product of
CH3COOH and KOH is
- 1 – 3
- 7 – 8
- 6 – 7
- 12 – 14
- How much NaOH is required to make 250
cm3 of 0.1 mol/dm3 solution?
- 10g
- 1.0g
- 0.1g
- 4g
- 2PbO2 → 2PbO + O2
In the equation above, the oxidizing agent is
- Pb4+
- Pb2+
- O2-
- O2
- A current of 0.5 A flows for 1930 seconds
and deposits 0.325 g of metal M. If the
charge is +2, the relative molecular mass is
- 65 g
- 32 g
- 24 g
- 40 g
- Emission of chlorofluorocarbon (CFC) into
the atmosphere causes
- global warming
- acid rain
- depletion of ozone layer
- greenhouse effect
10.The diagram above shows the reaction
path of an exothermic reaction. The heat of
reaction is represented by
- I
- II
- III
- IV
- Which of the following samples will react
fastest with dilute HCL?
A.10 g of lumps of CaCO3 at 25℃
- 10 g of powdered CaCO3 at 25 °C
C.10 g of lumps of CaCO3 at 50 °C
D.10 g of powdered CaCO3 at 50 °C
- The colour exhibited by copper in a flame
test is
- green
- lilac
- blue-green
- crimson
- Which of the following statements is
correct?
- Chlorine bleaches by oxidation while
sulphur(1V) oxide bleaches by reduction
- Chlorine bleaches h reduction while
sulphur( IV) oxide bleaches by oxidation C. Both of them bleach by oxidation
- Both of them bleach by reduction
- The IUPAC name for is
- 1-chlorobenzoic acid
- 3-chlorobenzoic acid
- M-chlorobenzoic acid
- P-chlorobenzoic acid
- 3-methylbutan-2-one is an isomer of
- Pentanal
- 3-methylpentan-2-one
- Hex-3-.ene
- 2-methylprop-1-ene
ANSWERS TO CHEMISTRY
2006/2007
- D 2. C 3. C 4. C 5. D 6. B 7. A 8. A 9. C
- D 11. D 12. C 13. A 14. A 15. A OMPREHENSION
INSTRUCTION: Read the passage carefully
and answer questions 1-5 below.
Olumba removed a small black amulet from
his neck and substituted a bigger one. The
former was for general protection at home,
the latter for protection and luck whilst
travelling. Ready at last he picked up his
matchet and headed for the chief’s house
with Ikechi behind him.
Olumba walked ahead looking upward as
usual. Just what he was searching for in the
sky Ikechi couldn’t tell. Perhaps, his
shortness accounted for this habit since he
often had to look up into the faces of his
taller companions. What he lacked in height
he made up in solid muscle and he looked
strong. His wrestling pseudonym was
Agadaga, a name which meant nothing but
which somehow conveyed an impression of
strength.
Eze Diali, the chief, sat at one end of his
reception hall ringed by the village elders
whom he had called to a meeting. The rest of
the hall was filled with much younger men.
“People of Chiolu,” the chief began, “I have
learnt that poachers from Aliakoro ‘will be at
the Great Ponds tonight. There is no doubt
that they will try to steal from the Pond of
Wagaba which as you know is rich in fish.
Our plan tonight is to bring one or more of
these thieves home alive and ask for very
large ransoms. This line of action will have
two effects. Firstly. it will prove our charges
of poaching against the people of Aliakoro,
and secondly, the payment of very large
ransoms would be a deterrent. We need
seven men for this venture. I call for
volunteers.”
“Who will head this party?” the Chief asked,
looking around. Chituru, one of the elders,
said: “Eze Diali, let us not waste time.
Olumba is the man for the job. We all know
that he has led many exploits like this one.”
“We still need six men,” Eze Diali said. Eager
youths came surging forward. Their wellformed muscles rippled as they elbowed one
another. It was difficult to choose.’
“I suggest Olumba should choose his men.
He knows the boys very well and his
judgment should be reliable.” It was
Wezume, another village elder, who spoke.
- Olumba wore amulets because he
________.
- was superstitious.
- was a strong and fearless fighter.
- wanted to please his wile.
- wanted to instill fear in Eze Diali.
- believed in their power of protection
- Olumba looked upwards because _______.
- he was searching for something in the sky.
- this was his usual practice.
- he was short and often had to look up.
- he lacked height.
- his wrestling pseudonym was Agadaga
- “Poaching” means
- stealing
- cracking eggs
- fishing
- deterring thieves
- demanding ransoms from Aliakoro
- The chief called the meeting because
- he wanted volunteers to go to Aliakoro
- he wanted to announce the fact that there
would definitely be poachers from Chiolu at
the Great Ponds that night
- he wanted to ask for very large ransoms
- the elders had devised a plan to prevent
the poaching
- seven men were needed to bring seven
- Why was Olumba chosen’?
- in order not to waste time
- because his nickname conveyed an
impression of strength
- his amulets for luck was were stronger
- he had caught thieves alive before
- the passage doesn’t say
In each of questions 6-8 choose the
word(s) that best complete the meaning
in the sentence/
- We watched the woman as she stood up
and ____ herself more comfortably.
- reseated
- resat
- reseat
- resifted7. The students _______ the principal’s
appeal for and took to the streets.
- deferred
- differed
- defied
- defined
- The noise from the record seller’s
workshop _______on for fishing. my ears.
- jeers
- jars
- jams
- jabs
In question 9-11, choose the option
opposite in meaning to the word(s) in
italics.
- The Military Governor upheld the decision
of his cabinet.
- Held up
- Undercut
- Maintained
- Abolished
- Reversed
- Chidi is naturally taciturn.
- Friendly
- Cheerful
- Dumb
- Lively
- Reserved
- James is a disco-addict. He takes his
student rather lightly.
- Humorously
- Gloomily
- Tediously
- Carefully
- Seriously
In questions 12-14 choose the words or
which best fill(s) the gap(s).
- There’s _____ventilation in this room;
that’s you don’t breathe well. A. few
- a few
- little
- a little
- Whenever he puts the light on,
someone_______ to disturb him.
- came
- has come
- comes
- would come
- It____ be taken tier repair after all: it’s
working again.
- couldn’t
- shouldn’t
- mightn’t
- needn’t
In question 15 choose the word that has
the same consonant sound as the one
represented by the letter(s) underlined.
- Chassis
- Chip
- Cheat
- Sharp
- Character
ANSWERS FOR ENGLISH
2007/2008
- E 2. B 3. A 4. A 5. D 6. A 7. C 8. B 9. E
- A 11. E 12. B 13. B 14. D 15. C
prep.ng
kindly take your time to study carefully
19
- Express 8 x 10-4 ÷ 2 x 10-5 as a fraction.
- 1/4
- 3/2
- 2/5
D.1/5
- Find the values of x for which
22x-3-33 x 2x + 4= 0
- x = 2, x = -3
- x = -2, x = 3
- x = 4, x = 1/8
- x=2, x=3
- If 2609 ÷ 1002= 66n, find n.
- 7
- 9
- 10
- 8
- Find the values of x such that
(
2
7 3 1
2⁄ ) (
?
?
) = (
10
7 )
- x = y=2
- x = -2, y= 2
- x = -2, y = 2
- x= y = -2
- A chord of a circle of radius 13cm is drawn
5cm from the centre of the circle. Find the
length of the chord.
- 12cm
- 24cm
- 18cm
- √
194 cm
- If x – 2 is a factor of px3+2×2 – 2p + 12,
find the value of p.
- 8/5
- –
10/3
- 2
- -2
- In a regular pentagon ABCDE, AC
intersects BD at P. Calculate <CPD.
A.108°
- 36°
- 72°
- 48°
Subject
s
Biolog
y
Chemistr
y
Math
s
Physic
s
Marks
95
2x+10
X
75
The table above shows the marks obtained
by a student in an examination. If the total
mark obtained is 300, what is the angle
corresponding to the mark obtained in
Chemistry if the information is represented in
a pie chart?
- 120°
B.144°
- 48°
- 108°
- A ladder 17m rests against a vertical wall
so that its foot is 8.5m from the wall. Find
the angle of inclination of the ladder to the
horizontal floor
A.30°
- 60″
- 45°
- 55°
10 Evaluate lim
?
→2
?2+?−6 ?−2
- 0
- 5
∞
- 1
- If ??
??
=6x 3 and y(-1) = 8, find y(x).
- 3×2 – 3x – 8
- 3×2 – 3x + 8
- 3×2 – 3x – 2
- 3×2 – 3x + 2
- The minimum of the function
f(x) = 2×2 – 12x + 5 is
- 59
- -59
- 3
- -3
- A basket contains 5 MTN cards, 6 GLO
cards, 3 MTEL cards and 6 Vmobile cards.
What is the probability that a card selected
from the basket at random will be MTN or
MTEL card?
- 3/20
- 3/4
- 1/4
- 2/5
- Find the range of the numbers 1/3, ½, 3/5B. 13/45
- 9/5
- 5/9
- If the mean of numbers 4, 3,5, x, 7 is 5,
find the variance.
- 2
- 10
- √
2
- 5
ANSWERS TO MATHEMATICS
2007/2008
- A 2. A 3. D 4. D 5. B 6. B 7. C 8. D 9. B
- B 11. D 12. C 13. D 14. D 15. A
ng
kindly take your time to study carefully
21
- The extension of a spring when 5 g weight
was hung from it was 0.56cm. If Hooke’s law
is obeyed, what is the extension caused by a
load 20g weight?
- 1.12 cm
- 2.14 cm
- 2.52cm
- 2.2401
- The distance travelled by a particle
starting from rest is plotted against the
square of the time-elapsed from the
commencement of motion. Th resulting graph
is a measure of
- initial displacement.
- initial velocity
- acceleration
- average velocity
- A 90cm uniform lever has a load of 30N
suspended at 15cm from one of its ends. If
the fulcrum is at the centre of gravity. the
force that must be applied at its other end to
keep it in horizontal equilibrium is
- 15N
- 20N
- 30N
- 60N
- Two points on a velocity-time graph have
coordinates (5s, 10m/s) and (20s, 20m/s).
Calculate the mean acceleration between the
two points.
A.0.67m/s2
- 0.80 m/s2
- 1.50 m/s2
- 2.00 m/s2
- Which of the fo1loWing±statements are
correct?
- Land and sea-breezes are natural
convection
ii: The vacuum in a thermos flask prevents
heat lo due to convection only
iii. Convection may occur in liquids or gases
but in solids
- i and ii only
- ii arid- iii only
- i and iii only
- I. ii and iii only
- The property of the eye known as its
power of accommodation it controlled by the
- pupil
- vitreous humour
- iris
- ciliary muscles
- Under constant tension and constant mass
per unit length, the note produced by a
plucked string is 500Hz when the-length of
the wire is 0.9m. At what length is the
frequency 150Hz?
- 3m
- 0.27m
- 8.33m
- 6740m
- An object is placed in front of two plain
mirrors inclined at an angle of θ˚ . If the total
number of images formed is 7, find the value
of θ˚
- 30°
B.45°
- 517
- 90°
- The north pole of a magnet can never be
separated from the south pole because of a
property known as _____.
- magnetic dipole.
- magnetic moment
- magnetic monopole
- magnetic quadrupole
- If the distance between two points
charges is increased by a factor of four, the
magnitude of electrostatic force between
them will be
- ½ of its initial value
- ¼ its initial value
- 1/16 of its initial value
- 4 times of Its initial value
- The terminal voltage of a battery is 4.0V
When r supplying a current of 2.0A; and 2:0V
when supplying a current of 3:0A. The
internal resistance of the battery is
- 0.5 Ω
- 1.0 Ω
- 2.0 Ω
- 4.00
- The primary aim in high tension
transmission is to
- Minimize electrical energy loses due to
heat production
- Increase the rate of energy transfers by
using high voltage
- Increase the current-in the wires Generate electricity at high current and
low voltage
- Which of the following is required to
convert a milliammeter to ammeter?
- A high resistance in Parallel
- A low resistance in series
- A low resistance in parallel
- A high resistance in series
- A light of energy 5eV falls on a metal and
electrons with a maximum kinetic energy of
2eV are ejected. The work function of the
metal is
- 0.4eV
- 2.5eV
- 3.0eV
- 7.0eV
- One of the features of fission process is
that
- its products are not radioactive
- it leads to chain reaction
- neutrons are not released
- the sum of the masses of the reactants
equals the sum of the masses of the products
ANSWERS TO PHYSICS
2007/2008
- D 2. C 3. B 4. C 5. C 6. D 7. A 8. B 9. A
- C 11. C 12. A 13. C 14. C 15. B1. Two immiscible liquids with different
boiling points can be separated by
- the use of separating funnel
- evaporation
- distillation
- decantation
- A mixture of CaCl2 and CaCO3 in water can
be separated by
- evaporation
- sublimation
- distillation
- decantation
- Consider the reaction represented by
xPb(NO)2 → 2PbO + yNO2 + zO2 What are the
values of x, y and z respectively?
- 2, 6, 3
- 1, 4, 2
- 2, 4, 1
- 2, 4, 2
- 20 cm3 of H2 mixed and separated with
100 cm3 of air containing 21% O2. Calculate
the volume of the residual gases at 110℃.
- 31 cm3
- 11 cm3
- 90 cm3
- 110 cm3
- What is responsible for metallic bonding?
- Sharing of electrons between the metal
atoms
- Attraction between the atomic nuclei and
the cloud of electrons
- Transfer of electrons from one atom to
another
- Attraction between positive and negative
ions
- 25 cm3 of 1.5 M solution of NaCl are added
to 50 cm3 of 3 M NaCl. The molar
concentration of the resulting solution is
- 2.5 M
- 3 M
- 2.25 M
- 4.5 M
- A solution of salt formed from HCl and NH3
solutions is
- acidic
- basic
- complex
- neutral
- Which of the following elements will burn
in excess oxygen to form a product that is
neutral to litmus?
- Carbon
- Hydrogen
- Sulphur
- Sodium
- A current was passed for 10 mins and 0.2
mole of Cu was deposited. How many grams
of Ag will it deposit? (Cu = 64, Ag = 108)
- 43.2g
- 21.6g
- 10.8 g
- 5.4 g
- Pollution of underground water by metal
ions is very likely in a soil that has high
- acidity
- alkalinity
- chloride content
- nitrate content
11 . Producer gas is a gas with low calorific
value because it contains more
- CO2 than O2
- N2 than CO
- CO2 than N2
- N2 than CO2
- For most reversible reactions,
- the reaction rate increase with time
- the reaction rate decreases with time
- the rate stabilizes with time
- the rate produces a curve with time
- Which of the following compounds will
leave a metal residue when heated?
- Cu(NO3)2
- AgNO3
- K2CO3
D.Na2CO3
- Which of the polymers contains nitrogen?
- Nylon
- PVC
- Polyethene
- Cellulose
- A red precipitate of copper(I)dicarbide is
formed when ammonium solution of
copper(l) chloride is introduced into
- CH2=CH-CH2-CH3
- CH3-CH2-C≡CH
- CH3-CH2-CH2-CH3D. CH3-C≡C-CH3
ANSWERS TO CHEMISTRY
2007/2008
- A 2. D 3. C 4. D 5. B 6. A 7. A 8. B 9. A
- D 11. B 12. C 13. B 14. A 15. DCOMPREHENSION
INSTRUCTION: Read the passage carefully
and answer the questions that follow it.
Mathematics is the language in which the
Book of Nature is written: Mathematics is the
queen of the sciences. It is universally
agreed that Mathematics is the backbone of
Science and Technology. For without
mathematics, the engineer is but an artist or
a sculptor. He can build his bridge, attest to
its form and beauty, but without
mathematics he cannot guarantee its
reliability to serve the purpose for which it is
built. Mathematics is indeed the science of
sciences. It is also art of all arts. It is right,
legitimate and defensible to consider
mathematics as an Art. The poet, the
musician, the artist and the mathematician
have a lot in common. Fundamental to all
their studies and works is their common
interest in the logical study of related
concepts and objects to form patterns which
will produce beauty, harmony and order.
Thus. the poet arranges words to produce a
pattern called music; the artist arranges
colours to produce a pattern called painting
and the mathematician arranges abstract
ideas into a pattern using symbols, to
produce equations. Each 01. these patterns –
the poem, the music, the painting and the
equation must stand up to the test of the
same order, harmony and beauty. So, if
Mathematics is not an art, what is art?
- The views expressed in this passage
belong to
- JAMB
- artists
- mathematicians.
- the poet
- the author of the passage
- The expression “Mathematics is the queen
of sciences- contains
- a contradiction
- an analogy
- an irony.
- a lie
- nonsense
- “Mathematics” is written with a capital M
in this passage because
- the writer a mathematician,
- the writer does not know to use
punctuation correctly punctuation correctly.
- the writer wants to distinguish between
concept and a subject.
- it is the normal way of writing about the
sciences.
- the writer is confused.
4.The last sentence in the passage, “So if
Mathematics is not an art, what is art?” is a
_____.
- question for the reader to answer.
- statement put in form of a question.
- question combined with a statement.
- mathematical question stated in words.
- pattern which illustrates beauty, harmony
and order in language.
- “Mathematics” can be considered as a
form of art because _____
- its main principles is made use of by the
arts.
- it involves drawing in figures.
- it is a form of Fine Arts. .! –
- it is a type of Graphic Arts
- it also involves a study of beauty,
harmony and order
In questions 6 and 7 Choose the Word
that has been correctly spelt
- It is not easy to ______ jobs sweeping in
the streets and on campus.
- maneuver
- manouever
- maneuver
- maneuver
- The defendant claimed he had been
______ into making a statement
- coarced
- coaxed
- coarsed
- coerced
In questions 8-10 choose the option that
best completes the gap
- I have reminded him that he is the only
______ can solve my problem.
- who
- which
- that
- whom
COMPREHENSION
INSTRUCTION: Read the passage carefully
and answer the questions that follow it.
Mathematics is the language in which the
Book of Nature is written: Mathematics is the
queen of the sciences. It is universally
agreed that Mathematics is the backbone of
Science and Technology. For without
mathematics, the engineer is but an artist or
a sculptor. He can build his bridge, attest to
its form and beauty, but without
mathematics he cannot guarantee its
reliability to serve the purpose for which it is
built. Mathematics is indeed the science of
sciences. It is also art of all arts. It is right,
legitimate and defensible to consider
mathematics as an Art. The poet, the
musician, the artist and the mathematician
have a lot in common. Fundamental to all
their studies and works is their common
interest in the logical study of related
concepts and objects to form patterns which
will produce beauty, harmony and order.
Thus. the poet arranges words to produce a
pattern called music; the artist arranges
colours to produce a pattern called painting
and the mathematician arranges abstract
ideas into a pattern using symbols, to
produce equations. Each 01. these patterns –
the poem, the music, the painting and the
equation must stand up to the test of the
same order, harmony and beauty. So, if
Mathematics is not an art, what is art?
- The views expressed in this passage
belong to
- JAMB
- artists
- mathematicians.
- the poet
- the author of the passage
- The expression “Mathematics is the queen
of sciences- contains
- a contradiction
- an analogy
- an irony.
- a lie
- nonsense
- “Mathematics” is written with a capital M
in this passage because
- the writer a mathematician,
- the writer does not know to use
punctuation correctly punctuation correctly.
- the writer wants to distinguish between
concept and a subject.
- it is the normal way of writing about the
sciences.
- the writer is confused.
4.The last sentence in the passage, “So if
Mathematics is not an art, what is art?” is a
_____.
- question for the reader to answer.
- statement put in form of a question.
- question combined with a statement.
- mathematical question stated in words.
- pattern which illustrates beauty, harmony
and order in language.
- “Mathematics” can be considered as a
form of art because _____
- its main principles is made use of by the
arts.
- it involves drawing in figures.
- it is a form of Fine Arts. .! –
- it is a type of Graphic Arts
- it also involves a study of beauty,
harmony and order
In questions 6 and 7 Choose the Word
that has been correctly spelt
- It is not easy to ______ jobs sweeping in
the streets and on campus.
- maneuver
- manouever
- maneuver
- maneuver
- The defendant claimed he had been
______ into making a statement
- coarced
- coaxed
- coarsed
- coerced
In questions 8-10 choose the option that
best completes the gap
- I have reminded him that he is the only
______ can solve my problem.
- who
- which
- that
- whom 9. My sister has ____ several food packages
for my birthday party.
- laid on
- layed up
- laid off
- layed on
- Many students were _____ into rioting by
the more radical ones
- guided
- gathered
- guarded
- goaded
In question 11 choose the option that
explains the information conveyed in the
sentence.
- Posters have been printed, and would be
distributed to the rank and file.
- to both the ordinary members and the
leaders.
- to those of high ranks and file.
- to the leaders alone.
- to the ordinary members alone.
In questions 12 and 13, choose the
option nearest in meaning to the
word(s) in italics
- Because more reliable evidence is needed
to prosecute the case, it is now in abeyance.
- court record
- suspension
- privacy
- secret
- In the olden days. mothers of twins were
never accepted as members of the society.
They were simply _____.
- banished
- excommunicated
- expelled
- ostracized
In question 14, choose the option that
has the same vowel sound as the one
represented by the letter(s) underlined
- Flood
- Stop
- flock
- blood
In question 15 choose the option that
has the same consonant sound as the
one represented by the letter(s)
underlined
- Echelon
- Church
- Character
- Chief
- Chassis
ANSWERS TO ENGLISH
2008/2009 P/UTME
- E 2. B 3. C 4. B 5. E 6. A 7. D 8. C 9. A
- D 11. D 12. B 13. D 14. C 15. DD. dipole moment
- Which of the following may be found in
light nuclei?
- β- particles
- protons
iii. neutrons
- ∝-particles
- i and ii only
- i and iii only
- i and iv only
- ii and iii only
- The difference between X-rays and γ-rays
is that
- X-rays arise from energy changes and are
due to electrons while γ -rays come from the
nucleus
B.X-rays are electromagnetic radiations while
γ -rays are not
C.X-rays have higher frequencies than γ –
rays
- X-rays are more penetrating than γ -rays
- When an atom loses or gains a charge, it
becomes
- an electron
- an ion
- a neutron
- a proton
ANSWERS TO PHYSICS
2008/2009
- A 2. D 3. D 4. C 5. A 6. A 7. C 8. B 9. A
- D 11. A 12. B 13. D 14. A 15. B
p.ng
kindly take your time to study carefully
31
- What are the values of pp q, r and s
respectively in the equation? ‘
pCH4 + qO2 → rCO +sH2O
- 1, 2, 1, 2
- 1, 3, 2, 2
- 2, 3, 2, 4
- 2, 3, 2, 2
- KHCO3 is contaminated with K2CO3 as
impurity. If 2.5 g of the impure KHCO3 on
heating produces 0.224 dm3 of CO2 at s.t.p.,
calculate the percentage of K2CO3 impurity.
(K=39, H = 1, C= 12, 0 = 16)
A.30%
B.40%
- 10%
- 20%
- The partial pressure of N2 in a container at
50℃ in which there are 0.30 mole of N2 and
1.2 mole of CO2 at a pressure of 2.00 atm is?
- 0.6 atm
- 0.5 atm
- 0.4 atm
- 1.6 atm
- The major reason why chemical reaction
occurs among elements is that they have the
tendency to
- attain the nearest noble gas structure
- become a metal
- become a non-metal
- become a noble element
- Given that the pH of a solution of KOH is
12, what is the concentration oh he OHions?
- 0.01 mol/dm3
- 1 x 10-12 mol/dm3
- 1 x 10-14 mol/dm3
- 1 x 10-7 mol/dm3
- Which of the following salt has a pH less
than 7?
- NaHCO3
- NH4Cl
- Na2SO4
- NaCl
- In which of the following reactions. does
hydrogen peroxide act as a reducing agent?
- PbO2 +2HNO3 + H2O2→ Pb(NO2)3 + 2H2O +
O2
- H2S _H2O2 → S + 2H2O
- PbSO2 + H2O2 → PbSO4 + H2O
- 2I + 2H + H2O2 → I2 + 2H20
- Temporary hardness of water is removed
by the use of the following EXCEPT
- Boiling
- Use Ca(OH)2
- Use of Na2CO3
- Use of alum
- Hydration of ions in solution is associated
with
- Liberation of heat
- Absorption of heat
- Reduction of heat
- Conduction of heat
- Apiece of radioactive element has initially
8.0×1027 atoms. Half-life is two days. After
16 days the number of atoms is
- 5 x 1021
- 5 x 1022
- 2 x 1022
- 2 x 1021
- Which of the following pairs of
substances are hygroscopic?
- CaCl and NaOH
- CaO and KOH
- Conc. H2SO4 and MgCl2
- CuO and CaO
- Zinc is not regarded as a transition metal
even though it is a d-block element because
- It has no election in 3d-orbitals
- It has all 3d-orbitals completely filled
- It blends with other neighbouring
elements
- It does not form complex ions like others
- Silver chloride turns grey when exposed
to sunlight because
- The silver ion is reduced to silver
- The silver ion is oxidized to silver
- Silver is a transition metal
- The silver chloride forms complexes in the
sun
- Which of these compounds exhibits
resonance?
- Benzene
- Ethanol
- Propene
- Butyne15. Hydrolysis of CH3COOCH2CH3 in dilute
HCI produces
- CH3COOH + CH3CH3
- CH3CH2OH. + CH3COCl
- CH3COOH; + CH3CH2OH
D.CH3COOH + CH3CH3
ANSWERS TO CHEMISTRY
2008/2009
- A 2. D 3. B 4. A 5. A 6. A 7. A 8. D 9. A
- – 11. D 12. B 13. D 14. A 15. Cng
kindly take your time to study carefully
35
- In a school, 180 students offer
Mathematics or Physics or both. If 125 offer
Mathematics and 105 offer Physics, how
many students offer Mathematics only?
- 75
- 80
- 55
- 125
- Find the value of x for which
3(24x + 3) = 96
- 2
- -2
- 1 2⁄
- -1 2⁄
- The cost of renovating a 5m square room
is ₦500. What is the cost of renovating a
10m square room?
- ₦1, 000
- ₦2, 500
- ₦2, 000
- ₦10, 000
- Find the rate of change of the total surface
area S of a sphere with respect to its radius r
when r = 2.
- 8π
B .16 π
- 10 π
- 14 π
- Evaluate ∫
???
2?
−
1
???
2
?
?0
??
- π
- – π
- π+ c
- π 2⁄
- Differentiate (cosθ + sinθ)2 with respect to
θ.
- 2cos2θ
- 2Sin2θ
- -2cos2θ
- -2sin2θ
- A binary operation * on the set of rational
numbers is defined as
x * y= 2x ?3−?3
?+?
, find -1*2
- 11
- -11
- 8
- -8
- A polynomial in x whose zeroes are 2, 1
and -3 is
- x3 − 7x + 6=0
- x3 + 7x – 6=0
- x3 −7x —6=0
- x3 + 7x +6=0
- Find the range of values of x for which
7x — 3 > 3x + 4.
- x < 7/4
- x > 7/4
- 7 < x < 4
- -4 < x < 7
- Let P be a probability function on set S,
where S = {C1, C2, C3, C4}. Find P(C3) if
P(C1)=3/10 and P(C4)=1/4
- 2/5
- 1/2
- 1/6
- 1/3
- Calculate the standard deviation of the
following data 7, 8, 9, 10. 11. 12, 13.
- 2
- 4
- 10
- 11
- If w is the mode and z is the median of
the following set of numbers: 2.4, 2.1, 1.6,
2.6, 2.6, 3.7, 2.1 and 2.6, then (3w,2z) is
- (2.6, 2.5)
- (2.1, 2.5)
- (7.8, 5.0)
- (6.2, 5.0)
- A trapezium has two parallel sides of
length 6crn and 8cm. If the area is 42cm2
,
find the, distance between the parallel sides.
- 6 cm
- 7cm
- 8cm
- 5cm
- An arc of a circle of length 22cm
subtends an angle of 3y° at the centre of the
circle. Find the value of y, if the radius of the
circle is 7cm.
- 30° –
- 60°
- 120°
- 150°ng
kindly take your time to study carefully
33
COMPREHENSION
INSTRUCTION: Read the passage below
carefully and answer the questions 1-5 that
follow.
All over the world till lately, and in most of
the world till today mankind has been
following the course of nature: that is to say,
it has been breeding up to maximum. To let
nature, take her extravagant course in the
reproduction of the human race may have
made sense in an age in which we were also
letting her take her course in decimating
mankind by the casualties of war, pestilence,
and famine. Being human, we have at least
revolted against that senseless waste. We
have started to impose on nature’s heartless
play a humane new order of our own.
But, once man has begun to interfere with
nature, he cannot afford to stop half way. We
cannot, with impunity, cut down the deathrate and at the same time allow the birthrate to go on taking nature’s course. We
must consciously try to establish an
equilibrium or, sooner or later, famine will
stalk aboard again.
1.The author observes that
- war, pestilence and famine were caused
by the extravagance of nature.
- nature was heartless and senseless.
- there was a time when uncontrolled birth
made sense.
- it was wise at a time when mankind did
not interfere with normal reproduction.
- nature was heartless in its reproductive
process.
2, Which of these statements does not
express the opinion of the author?
- mankind has started to interfere with the
work of nature.
- many people had died in the past through
want and disease.
- mankind should have the maximum
number of children possible
- mankind should take care of its children
- man’s present relationship with nature in
matters of birth and death is a happy one.
- “Humane” as used in the passage means
- sensible
- wise
- human
- benevolent
- thorough
- “We must consciously try to establish
equilibrium” in the passage implies that
mankind must
- realistically find an equation.
- strive not to be wasteful.
C purposely try to fight nature.
- try to fight nature;
- deliberately find a balance.
- The main idea of this passage is that
- nature is heartless.
- man should control the birth rate
- mankind will soon perish of Starvation.
- pestilence causes more deaths than war.
- man should change nature’s course
gradually
In questions 6 and 7, select the option
that best explains the information
conveyed in the sentence
- With the screening test around the corner,
I’ve got the jitters already.
- I’ve felt confident.
- I’ve felt secured and hopeful.
- I’m getting anxious.
- I’m getting afraid
- The teacher warned her students against
resting on them
- relaxing on soft chairs
- taking things for granted
- depending on past achievements
- feeling satisfied and making no new
efforts
In questions 8-11, choose the word(s)
that best completes the meaning in the
sentences
- The door handle was shaky because the
screws had____
- lost
- loosed
- losed
- loosened
- Something is being done to detect the
person who____ the crime.A. perpetrated
- perpetuated
- performed
- promoted .
- The lawyer pleaded with the judge to
_______ justice with mercy.
- tempar
- temper
- tamper
- taper
- Obi bought five novels last week and has
gone through all. He is totally a_____ reader.
- vicarious
- voracious
- vivacious
- veracious
In questions 12 and 13, choose the
option nearest in meaning to the
word(s) or phrase(s) in italics
- He lost his voice momentarily.
- in a moment
- in a split moment .
- for a brief period of time
- without delay
- instantly
- In some parts of India, people are
ostracized simply because of their ancestry.
- abandoned
- shut off from society
- refused education
- rendered unhappy
- hated
In questions 14-15 choose the word(s)
or phrase which best fills the gap(s)
14._____ him in the crowd, 1 would have
told you at
once.
- Had it been 1 saw
- if I saw
- Had I seen
- Should 1 see
15._____ he had insufficient qualification; he
was
denied admission.
- Hence
- For the fact
- Being
- As
USE OF ENGLISH
2009/2010 ANSWERS
- C 2. E 3. A 4. E 5. B 6. C 7. D 8. D 9. A
- B 11. B 12. C 13. B 14. C 15. D
- Find the locus of a point which moves
such that its distance from the line y 3 is a
constant k.
- y = 3 + k
- y= 3 – k
- y = 3 + k
- y= k – 3
ANSWERS TO MATHEMATICS
2009/2010
- A 2. C 3. C 4. B 5. B 6. A 7. B 8. A 9. B
- C 11. A 12. C 13. A 14. B 15. Cp.ng
kindly take your time to study carefully
37
- A body falls freely under gravity (g = 9.8
m/s2
) from a height of 10 m on top of a
platform 0.8 m above the ground. Its velocity
on reaching the platform is
- 7848 m/s
- 80 m/s
- 78 m/s
- 27.78 m/s
- A hydrometer is an instrument used for
measuring the
- depth of water in a vessel
- relative density of a liquid by method of
flotation
- relative density of a liquid by finding the
apparent loss in weight
- relative humidity of the atmosphere
- A bead traveling on a straight wire is
brought to rest at 0.2 m by friction. If the
mass of the bead is 0.01 kg and the
coefficient of friction between the bead and
the wire is 0.1, determine the work done by
friction.
- 2 x10-4 J
- 2 x 103
J
- 2 x 101 J
- 2 x 102 J
- A machine whose efficiency is 60% has a
velocity ratio of 5. If a force of 500N is
applied to lift a load of P(N), what is the
magnitude of P?
- 750N
- 4166N
- 500N
- 1500N
- A mass of gas at 7°C and 70cm of mercury
has a volume of 1200 cm3
. Determine its
volume at 27°C and a pressure at 75cm of
mercury.
- 1200 cm3
- 1378 cm3
- 4320 cm3
- 4629 cm3
- A motor tyre is inflated to a pressure of
2.0 x 105 Nm-2 when the temperature of air is
27°C. What will be the pressure at 87°C
assuming the volume does not change?
- 2.6 x10-5 Nm-2
- 2.4 x 10-5 Nm-2
- 2.2 x 10-5 Nm-2
- 1.3 x 10-5 Nm-2
- A beam of light is incident from air to
water at an angle of 30°. Find the angle of
refraction if the refractive index of water is
4/3.
- 15°
- 18°
- 22°
- 240˚
- The wavelength of signal from a radio
transmitter is 1500m and the frequency is
200KHz. What is the velocity of the
propagation?
- 3 x 108ms-2
- 7 x 103ms-2
- 3 x104ms-2
- 7ms-2
- A boy on looking into a mirror discovers
that his face appeared to have grown bigger.
The boy must have been looking at a
- convex mirror with his face at the focus
- concave mirror with his face between the
focus and the mirror
- convex mirror with his face between the
focus and the mirror
- concave minor with his face at this focus
- Find the frequencies of the first three
harmonics of a piano string of length 1.5m, if
the velocity of the string is 120m/s.
- 40Hz, 80Hz, 120Hz
- 180Hz, 360Hz, 540Hz
- 80Hz, 160Hz, 240Hz
- 36011z, 180Hz, 90Hz
- The resistance of a piece of wire of length
20 cm and cross-sectional area 8 x 105 m2
and resistivity 4 x 10-7 Ωm is
- 1.0 Ω
- 10.0 Ω
- 400.0 Ω
- 1.0 x 10-13
- An electric device is rated 2000W, 250 V.
The correct fuse rating of the device is
- 8A
- 9A
- 7A
- 6A
- Determine the inductive reactance when
a 30.0mH inductor with negligible resistance
is connected to a 1.3 KHz oscillator B. 122.5Ω
- 245.0Ω
- 39KΩ
- The half-life of a radioactive clement is
9days. Calculate the fraction that remains
after 36days.
- 1/32
- 1/16
- 1/4
- 15/32
- The graphite rods surrounding the
uranium fuel rods in a nuclear reactor are
used to
- absorb the neutrons and hence halt the
nuclear process
- create the neutrons- and hence slow down
the nuclear process
- slow down the neutrons and hence slow
down the nuclear process
- speed up the neutrons and hence speed
up the nuclear process
ANSWERS TO PHYSICS
2009/2010
- – 2. B 3. B 4. D 5. A 6. B 7. C 8. A 9. B
- A 11. D 12. A 13. C 14. B 15. CPentanoic acid
- But-2-ionic acid
- Ethyne undergoes the following reactions
except
- Polymerization
- Addition
- Substitution
- Etherification
ANSWERS TO CHEMISTRY
2009/2010
- D 2. B 3. A 4. C 5. A 6. C 7. D 8. D 9. A
- D 11. B 12. C 13. C 14.B 15. DPentanoic acid
- But-2-ionic acid
- Ethyne undergoes the following reactions
except
- Polymerization
- Addition
- Substitution
- Etherification
ANSWERS TO CHEMISTRY
2009/2010
- D 2. B 3. A 4. C 5. A 6. C 7. D 8. D 9. A
- D 11. B 12. C 13. C 14.B 15. Dwww.prep.ng
kindly take your time to study carefully
41
COMPREHENSION
INSTRUCTION: Read the passage
carefully, and answer the questions that
follow it.
Although our aim is to nurture children,
Nigerian children are still subjected to severe
physical, social and mental stress as they
develop. So far, our interest and activities
have been to ensure their physical well-being
through the reduction of high mortality and
morbidity rates, still inadequate as this may
- But we need to examine from time to
time the other needs of the Nigerian child
which will ensure a totally healthy
development.
We are split between two cultures our
traditional and the western, a relic of our
colonial past. This also affects our child
rearing practices. Therefore, these practices
must have a very important bearing on how
the child is prepared for our world of today so
that he fits into our different personalities in
terms of motivation, aggressiveness,
achievement and the integration of the
individual into the community socially and
culturally. It is important that, while we
struggle with the visible organic diseases, we
fix our gaze on the other important measure
to attain this one a healthy child.
The process of social adjustment begins from
the moment of birth. Many of our traditional
birth practices ensure that the mother either
carries or suckles her child immediately after
birth. The baby therefore comes into close
contact with the mother at this critical time.
Moreover, she is forced to stay indoors with
the baby for varying periods of time. By this
means, the attachment of the baby to the
mother, so essential for the child’s ability to
relate to her in future, is secured.
This crucial moment in the baby’s life is now
being recognized in western countries, whilst
birth practices in some hospitals and
maternity homes separate mother and child
immediately after birth to the extent that
their ability to develop a close relationship
may be jeopardized. Our Nigerian child of
today may, therefore, be worse off than that
of yesterday. As we move towards the
training of our traditional birth attendants
with a view to incorporating them into our
health services, healthy practices such as the
one described above must be maintained and
encouraged.
- In the passage there is an attempt to
explain that to ensure a totally healthy child
- it is necessary to concentrate on the
child’s physical well-being alone
- it is essential to reduce the high child
mortality and morbidity rate
- it is necessary to take care of other things
in addition to the child’s physical well-being
- it is important to keep to the rules of
hygiene
- it is necessary to copy foreign ways of
bringing up children
- It is said that differences in ways of
bringing up children and educating them
- achieve the same results
- are reflected in the personalities, attitudes
and achievements of the individual
- make people aggressive
- have nothing to do with educational
attainments
- are a matter of the cultural background of
the people
- Since the training for social adjustment
begins from the moment of birth, our
traditional practices
- are too uncivilized to be helpful
- need to be modernized
- ate very helpful to the proper growth of
the child
- make the child stranger to modern
civilization
- are the cause of under-development
- In spite of the fact that the western
countries now recognize the importance of
the early period of
childhood in forming a relationship, Nigerian
hospitals and maternity homes
- copy the wrong-western practice now
being criticized in western countries .
- improve on local practices and the future,
of the child is secure
- ensure that the child is brought up in p.ng
kindly take your time to study carefully
42
- ensure that the child develops the right
skills – for establishing relationships
- do not know which practice to choose
- Unless the training of our traditional birth,
attendant is based on healthy practices
- our children will be under-developed
- our children will be worse off than those
brought up in the traditional way
- our medical services will be unable to
provide the right services
- our economic progress will be adversely
affected
- the role of the mother will be rendered
useless
In the following sentences, choose the
word that is SIMILAR IN MEANING to
the word italicized/underlined in each of
the sentences.
- We consider the recent silver jubilee
celebration in the state a very historic event.
- important
- memorable
- ancient
- critical
- The governor’s address during his recent
visit to our town was delivered extempore.
- out-of-hand
- timely
- off-hand
- expertly
- One of the candidates was handed over to
the police for attending the interview with
spurious credentials.
- false
- incomplete
- unsigned
- altered
- There is a theory that postulates that all
Nigerian languages derive from one source.
- confirms
- affirms
- suggests
- emphasizes
- The candidate was disqualified as a result
of his irreverent behaviour.
- shameful
- disrespectful
- careless
- abnormal
In each of the questions in this section,
choose the option that best completes
the gap.
- The rain……when the accident took
place.
- has stopped
- stopped
- was stopped
- had stopped
- Players for the next FIFA world
competition have been _____.
- choosen
- chosed
- chosen
- choosed
- The boy was ____ by snake early this
morning.
- beaten
- bitten
- bit
- bite
- It is desirable that you ____ there when
he arrived.
- be
- are
- will be
- should be
- If I _____ in Udenta’s position, I would
go into politics.
- am
- was
- were
- be
ANSWERS TO USE OF ENGLISH
2010/2011 (Session 1)
- C 2. B 3. C 4. A 5. B 6. B 7. C 8. A 9. C
- B 11. D 12. C 13. B 14. B 15. CCOMPREHENSION
INSTRUCTION: Read the passage carefully,
and answer the questions that follow it.
Our planet is at risk. Our environment is
under threat. The air we breathe, the water
we drink, the seas we fish in, and soils we
farm, the forests, animals and plants which
surround us are in danger. New terms and
words describe these problems – acid rain,
the greenhouse effect, global warming, holes
in the ozone layer, desertification and
industrial pollution. We are changing our
environment. More and more gases and
wastes escape from our factories. Rubbish,
oil spillages and detergents damage our
rivers and seas. Forests give us timber and
paper, but their loss results in soil erosion
and also endangers wildlife.
The richer countries of the world are mainly
responsible for industrial pollution. This is
where most of all the commercial energy is
produced. In developing countries, poverty
cause people to change their environment to
overgraze grassland, to cut down trees for
new land and firewood, to farm poor soil for
food.
The United Nations Environmental Protection
Agency says that an area of forest the size of
Sierra Leone disappears every year. Trees
are cut down for timber which is used for
building, furniture, paper and fuel. They are
also destroyed to provide land on which to
graze animals and build new villages and
towns. But trees have many other important
uses. Trees protect the land from heavy
downpour of ram and their roots help to hold
the soil together. Forests are also the home
of many living things. The Amazon forest
contains one fifth of all the species of birds in
the world. In our forests, there may be plants
and animals which could help in the discovery
of new medicines of crops.
To rescue and conserve our beautiful world,
we must act cooperatively. Individuals,
communities, nations and international
associations, all have a responsibility. By
learning to protect the natural environment,
we can manage the earth’s resources for
generations to come.
- The risk referred to in the passage is
______.
- environmentally induced
- industrially produced
- man-made
- sociologically produced
- From the passage, it can be deduced that
the inhabitants of developing countries
- take more care of their environment than
those in developed countries
- generate more harmful industrial byproducts
- degrade the environment to eke out a
livelihood
- cut down trees only for farmlands and fuel
- According to the passage, the size of
forest depleted annually is
- minimal
- colossal
- infinitesimal
- Infinite
- The writer holds the richer countries
responsible for industrial pollution because of
their _____.
- technological innovations
- energy requirement
- industrial revolution
- lack of interest in environmental
protection
- The message of the writer is the _____.
- need for the developed countries to assist
the poorer ones
- grave dangers of global warming
C urgent need to protect the natural
environment
D need to research into other uses of the
trees in our forest
In the following sentences, choose the
word that best completes the meaning in
each of the sentences.
- The manager failed to control his staff
because he was very ______.
- rash
- indiscreet
- reckless
- tactless
- The usefulness of the fertilizer in modem
farming should be widely ……
USEng
kindly take your time to study carefully
44
- diffused
- disseminated
- spread
- scattered
- He was the only candidate who failed the
interview. So, he had to bear his ____.
- disaster
- misfortune
- catastrophe
- calamity
- The death of the night-guard continues to
be a _____ to the police.
- confusion
- puzzle
- quagmire
- problem
- A few politicians were ______ from the
accusation of wrong doing.
- restrained
- rescued
- absolved
- precluded
In the following sentences, choose the
word that is OPPOSITE IN MEANING to
the word in italic/underlined in each of
the sentences
- The officer has commended the cordial
relationship existing between the soldiers and
the civilians.
- disordered
- confused
- strained
- unfortunate
- Many foreign experts would like to
establish in this country because the
environment is congenial.
- hostile
- inhospitable
- aggressive
- offensive
- The new chairman has exhibited
prudence in his handling of the revenue.
- impudence
- shabbiness
- dishonesty
- recklessness
- There is no point dissipating energy on a
useless argument.
- destroying
- marshalling
- storing
- conserving
- There is much apathy among youths
nowadays towards reading novels.
- indecision
- indifference
- enthusiasm
- inclination
ANSWERS TO USE OF ENGLISH
2010/2011 (Session 2)
- C 2. C 3.B. 4. B 5. C 6. D 7. B 8. B 9. B
- C 11. C 12. A 13. D 14. D 15..ng
kindly take your time to study carefully
45
- Simplify √(243)−1?5 5
- x/3
- 3/x
- -x/3
- -3/x
- Without using tables, evaluate
(125)1 3⁄ x (0.49)1 2⁄ x (0.01)1 2⁄
- 7/20
- 20/7
- 5/7
- 7/5
- Convert 12314 to a number in base 6.
- 1056
- 3016
- 1036
- 5016
- Find the slope of the curve
y = 3×3 + 5×2−3 at (-1, 5).
- 1
- -1
- 19
- -19
- Find the area of the region bounded by
y = x2−x −2 and x-axis.
- 9/2
- -9/2
- 8/3
- 16/3
- The minimum value of y = x2 −4x −5 is
- 2
- -2
- 13
- -13
- Make x the subject of the relation
y- = 3 – lnx.
- e3-y
- ey-3
- y/3
- 3/y
- Find x, y for which (2?
4
3 ?
) (1
2) = (
10
−1)
- (1, -2)
- (1, 2)
- (-1, 2)
- (2, −1)
- Simplify
11
2
2÷1
4
??
32
- 3/256
- 3/32
- 6
- 85
- The probability of either event A or B is
5/6, while that of event B is 1/6. If the
probability of both A and B is 1/2, what is the
probability of event A.
- 3/4
- 5/6
- 1/4
- 3/5
- The chances of three independent events
X, Y and Z occurring are ½, 2/3, ¼
respectively. What are the chances of Y and
Z only occurring?
- 1/8
- 1/24
- 1/12
- ¼
- Some red balls were put in a basket
containing 12 white balls and 16 blue balls.
lithe probability of picking a red ball from the
basket is 3/7, how many red balls were
introduced?
- 13
- 20
- 12
- 21
- Find the coordinates of the mid-point of
the line joining (2, 7) and (1, -6).
- (1
2 ,
13
2
)
- (3
2
,
1
2
)
- (
1
2
,
1
2
)
- (
3
2
,
13
2
)
- An equilateral triangle of sides 2cm is
inscribed in a circle. Find the area of the
circle.
- 4π cm2
- 8π cm
2
- 4π/3 cm2
- 3π/4 cm215. The chord PQ of a circle is equal to the
radius, r of the circle. Find the length of the
arc PQ.
- 3πr/4
- πr/4
- πr/3
- πr/6
ANSWERS TO MATHEMATICS
2010/2011
- A 2. B 3. B 4. B 5. B 6. A 7. A 8 A 9. C
- – 11. D 12. D 13. B 14. C 15.
ng
kindly take your time to study carefully
47
- Two forces whose resultant is 100N are at
right angles to each other. if one of them
makes an angle of 30° with the resultant,
find the magnitude of the other force.
- 8.66 N
- 86.6 N
- 50.0 N
- 5.0 N
- A body of weight W N rests on a smooth
plane inclined at an angle θ° to the
horizontal. The component of the weight
down the slope is
- W sin θ
- W cos θ
- W tan θ
- W sec θ
- A body of mass 100g moves with a
velocity of 10.0ms-1 and collides with a wall.
After the collision, the body moves with a
velocity of 2.0ms-1
in the opposite direction.
The change in momentum is
- 8.0 Ns
- 1.2 Ns
- 12.0 Ns
- 80 Ns
- A 12V battery supplying a current of 20A
was used to melt 1.5kg of ice at 0°C.
Calculate the time required if the latent heat
of fusion of ice is 336 × 103
J/Kg.
- 35.0 min
- 3.5 min
- 76 min
- 21.0min
- The light from the sun reaches the earth
mainly by.
- convection
- conduction
- radiation
- reflection
- One valid assumption of the kinetic theory
of gases is that
- the molecules are in random motion and
the number of collisions is constant
- the number of molecules increases with
the pressure
- the molecules of the gas are all identical
and are very small in size
- the number of molecules increases with
temperature
- An astronomical telescope is said to be in
normal adjustment when the
- eye is accommodated
- focal length or objective lens is longer
than that of the eye piece
- final image is at the near point of the eye
- final image is at infinity
- Dispersion of light by a glass prism is due
to the
- different hidden colours of the glass
- different speeds of their various colours in
glass
- defects in the glass
- high density of glass
- A guitar string of length 33cm is under a
tension of 55N. If the fundamental frequency
is 196Hz, find the speed of wave on string.
- 6m/s
- 0.33m/s
- 129m/s
- A transformer has 400 turns as its
primary winding and 100 turns as secondary
winding. If the primary coil is connected to a
12V source, the transformer functions as
- a step-down transformer with secondary
emf= 6V
- a step-down transformer with secondary
emf= 3V
- a step-up transformer with secondary emf
– 24V
- a step-up transformer with secondary emf
– 48V
- A battery of internal resistance of 2Ω has
a voltage of 4.0V when supplying a current of
2.0A. Calculate the terminal voltage if it now
supplies a current of 3.0A.
- 2.0V
- 6.0V
- 1.5V
- 12.0V
- The purpose of a dielectric material in a
parallel plate capacitor is to
- increase its capacitance
- decrease its capacitance
- insulate the plates from each other
- increase the magnetic field between them rep.ng
kindly take your time to study carefully
49
- Which of the following statements is true
of the period of a simple pendulum?
- it depends on the mass of the bob and the
acceleration due to gravity
- it depends on the length of the string and
the acceleration due to gravity
- it depends on the mass of the bob and the
length of the string
- it depends on the mass of the bob, the
length of the string and acceleration due to
gravity
- A boat travels due east with a speed of
40ms-1 across a river flowing due south at
30ms-1
. Calculate the resultant speed of the
boat.
- 1.3 ms-1
- 10.0 ms-1
- 50.0 ms-1
- 70.0 ms-1
- The atmospheric pressure due to water is
1.3 x 106 Nm-2
. What is the total pressure at
the bottom of an ocean 10m deep? (Density
of water = 1000kgm-3 and g=10ms-2)
- 1.3 x 107 Nm-2
- 1.4 x106 Nm-2
- 1.4 x 104 Nm-2
- 1.0 x 105 Nm-2
- Which of the f011owing conditions will
make water boil at a temperature of 100℃
and saturation vapour pressure of
750mmHg?
- decrease the external pressure
- heat more rapidly at the same pressure
- increase the external pressure
- reduce the quantity of water
- The density of a fixed mass of gas at
constant pressure is
- constant with temperature
- directly proportional to the temperature
- inversely proportional to the temperature
- directly proportional to its volume
- Which of the following equations is
incorrect about an ideal gas (all the symbols
have their usual meanings)
- PV=nRT
- ??
?
= constant
??
3 2⁄ ???
- ??
? = ????????
- The equation of a wave traveling Along the
positive x-direction is given by
y = 0.20sin(500t – 20x). The amplitude,
angular frequency and wavelength of the
wave are respectively given by
- 0.2 cm, 500rad/s, 20 cm
- 0.2 cm, 500rad/s, 0.1 πcm
- 0.2 cm, 2×10-3
rad/s, 0.1π
cm
- 5 cm, 2x 10-3
rad/s, 0.05cm
- When a plane mirror at which a ray of light
is incident is rotated through an angle θ, the
reflected ray will be rotated through
- 1/2θ
- θ
- 2 θ
- 3 θ
- The quality of sound depends on its
- frequency
- wavelength
- velocity
- harmonics
- The resistance of a piece of wire of length
20m and cross-sectional area 8 x 10-6 m2 has
a resistance of 1Ω. The resistivity of the wire
is
- 3 x 10-7 Ω/m
- 4 x 10-7 Ω/m
- 1.6 x 10-5 Ω/m
- 4 x 10-5 Ω/m
- In an AC circuit that contains only a
capacitor the voltage
- leads the current by 90˚
- lags behind the current by 90˚
- leads the current by 180˚
- lags behind the current by 180°
- The angle between the direction of the
earth’s magnetic field and the horizontal is
called
- angle of deviation
- magnetic declination
- magnetic meridian
- angle of dip
- Which of these statements is not correct
concerning atomic structure?
- negatively charged electrons orbit the
positively charged nucleus
- electromagnetic forces bind the electrons protons and neutrons have approximately
equal mass
- the number of electrons orbiting the
nucleus is equal to the number of nucleons
- The half-life of a radioactive element is 9
days. Calculate the fraction that remains
after 36 days.
- 1/32
- 1/16
- 1/4
- 15/32
- One of the features of the fission process
is that
- it leads to chain reaction
- its products are not radioactive
- neutrons are p not released
- mass and’ energy are conserved
ANSWERS TO PHYSICS
2010/11 (SESSION 2)
- B 2. C 3. B 4. A 5. C 6. D 7. B 8. C 9. D
- B 11. B 12. D 13. D 14. B 15. Aprep.ng
kindly take your time to study carefully
53
- The separation of oil and water with
different boiling points can best be achieved
by A. fractional distillation
- decantation C. evaporation _
- using a separating funnel
- Calculate the minimum volume of oxygen
that.is required for the complete combustion
of a mixture of 20cm3 of CO and 25cm3 of
hydrogen.
- 45cm3
- 22.5 cm3
- 20 cm3
- 10 cm3
- An increase in temperature causes an
increase in the pressure of a gas because
there is an increase in the
- average velocity of the gas molecules
- number of collisions between the gas
molecules
- density of the gas. molecules
- free mean path between each molecule
and the other
- A liquid begins to boil when
- its vapour pressure is equal to the vapour
pressure of its solid at a given temperature
- molecules start escaping from the surface
- its vapour pressure equals the
atmospheric with pressure
- its volume is slightly increased
- If the relative rate of diffusion of a gas is
0.25 and that of Cl2 under the same
conditions is 0.20, calculate the relative
molecular mass of the gas.
- 22.7
- 45.4
- 68.1
- 90.8
- The following molecules contain hydrogen
bonding EXCEPT
- ammonia
- ethanoic acid
- hydrogen fluoride
- Water
- If 20cm3 of distilled water is added to
80cm3 of 0.50 mol/dm3 HCl solution, the new
concentration of the acid is
- 0.10 mol/dm3
- 0.20 mol/dm3
- 0.40 mol/dm3
- 2.00 mol/dm3
- What is H202 acting as in the equation
below?
H2O2 + 2H+ + 2Fe2+
- oxidizing agent
- reducing agent
- an acid
- a base
- A current was passed for 10 mins 20 secs
and 0.1 mole of Cu was deposited. How
many grams of silver will be deposited by the
same quantity of electricity? {Ag=108}
- 10.8g
- 21.6 g
- 5.4 g
- 108 g
- Which of the following statements is
correct?
- dissolution of anhydrous CuSO4 is
exothermic while that of hydrated CuSO4 is
endothermic
- dissolution of anhydrous CuSO4 is
endothermic while that of hydrated CuSO4 is
exothermic
- dissolution of both anhydrous CuSO4 and
hydrated CuSO4 is exothermic
- dissolution of both anhydrous CuSO4 and
hydrated CuSO4, is endothermic
- NO(g) +CO(g) → N2(g) + CO2(g) ∆H=-89.3KJ
What conditions would favour maximum
conversion of nitrogen(II) oxide and
carbon(II)oxide in the reaction above?
- low temperature and high pressure
- high temperature and low pressure
- high temperature and high pressure
- low temperature and low pressure
11 Which of the alloys below does not
contain copper?
- brass
- bronze
- type metal
- solder
- 2Al(s) + 2NaOH(aq) + 6H2O(l) →
2NaAl(OH)4(aq) + 3H2(g)
From the equation, give the condition of
reaction
- cold dil. NaOH
- hot. concentrated NaO warm dilute NaOH
- hot dilute NaOH
- Ethanol reacts With. aqueous sodium
oxoiodate(I) to give a bright yellow solid with
a characteristic smell. The product is
- trichloramethane
- ethanal
- iodoethane
- triiodomethane
- An alkanoic acid has a molar mass of
102g. Derive its molecular formula and hence
name the acid
- propanoic acid
- butanoic acid
- pentanoic acid
- hexanoic acid
ANSWERS TO CHEMISTRY
2010/2011 (SESSION 2)
- D 2. B 3. A 4. C 5. B 6. – 7. D 8. A 9. B
- A 11. A 12. D 13. A
p.ng
kindly take your time to study carefully
55
COMPREHENSION
INSTRUCTION: Read the following passage
carefully, and answer the questions that
follow.
If we examine the opportunities for education
of girls or women in less developed countries,
we usually find a dismal picture. In some
countries, the ratio of boys to girls in
secondary schools is more than seven to one.
What happens to the girls? Often, they are
kept at home to look after younger siblings
and to perform a variety of domestic chores.
Their education is not perceived as in any
way equal in importance to that of the boys.
When a non-literate or barely literate girl
reaches adolescence, she has little or no
qualification for employment, even if her
community provides any opportunity for the
employment of women. The solution is to get
her married as soon as possible, with the
inevitable result that she produces children
too soon, too often and too late. With no
formal education, she is hardly aware that
there is any alternative. In a study made in
Thailand, it was noted that the literate
woman marries later and ceases childbearing
earlier than her non-literate counterpart. But
the latter is so chained in her household by
the necessities of gathering fuel, preparing
food and tending children that she is very
difficult to reach, even if health services,
nutrition, education, maternal and child
health centres are available in her
community. She does not understand what
they are intended to do.
- The phrase “a dismal picture” means
- a dull show
- an interesting show
- a sad situation
- a dreadful appearance
- According to the writer, most girls in less
developed countries are not in school
because
- they refuse to be educated
- they prefer getting married and having
children
- the education of boys is rated higher
- the girls have no employment
- The non-literate woman is very difficult to
reach because she
- does not understand the value of
education and health services
- is too far from the city and from school
- is not permitted to go out to attend clinics
for health services
- can only gather fuel and prepare food
- The phrase “too late” as used in the
passage implies that the woman
- ought to have stopped producing children
earlier
- goes on producing children when she
ought to have stopped
- fails to marry early enough for her to
produce children .
- had all her children at an advanced age
- The writer ’emphasizes that in less
developed countries –
- the education of girls is not important
- the non-literate woman has some
advantage because she has more
- the literate female is a threat to the male
in employment
- there is a need to give boys and girls
equal opportunities in education
LEXIS AND STRUCTURE
From the options in questions 6 and 7,
choose the one that best completes the
sentences.
- One of the hens we bought _____ten eggs
already.
- have laid
- has lain
- has layed
- has laid
- My friend and classmate ______ present
when the girls insulted me.
- were
- is
C was
- are
In the following sentences, choose the
word that is similar in meaning to the
word underlined in eacw.prep.ng
kindly take your time to study carefully
55
COMPREHENSION
INSTRUCTION: Read the following passage
carefully, and answer the questions that
follow.
If we examine the opportunities for education
of girls or women in less developed countries,
we usually find a dismal picture. In some
countries, the ratio of boys to girls in
secondary schools is more than seven to one.
What happens to the girls? Often, they are
kept at home to look after younger siblings
and to perform a variety of domestic chores.
Their education is not perceived as in any
way equal in importance to that of the boys.
When a non-literate or barely literate girl
reaches adolescence, she has little or no
qualification for employment, even if her
community provides any opportunity for the
employment of women. The solution is to get
her married as soon as possible, with the
inevitable result that she produces children
too soon, too often and too late. With no
formal education, she is hardly aware that
there is any alternative. In a study made in
Thailand, it was noted that the literate
woman marries later and ceases childbearing
earlier than her non-literate counterpart. But
the latter is so chained in her household by
the necessities of gathering fuel, preparing
food and tending children that she is very
difficult to reach, even if health services,
nutrition, education, maternal and child
health centres are available in her
community. She does not understand what
they are intended to do.
- The phrase “a dismal picture” means
- a dull show
- an interesting show
- a sad situation
- a dreadful appearance
- According to the writer, most girls in less
developed countries are not in school
because
- they refuse to be educated
- they prefer getting married and having
children
- the education of boys is rated higher
- the girls have no employment
- The non-literate woman is very difficult to
reach because she
- does not understand the value of
education and health services
- is too far from the city and from school
- is not permitted to go out to attend clinics
for health services
- can only gather fuel and prepare food
- The phrase “too late” as used in the
passage implies that the woman
- ought to have stopped producing children
earlier
- goes on producing children when she
ought to have stopped
- fails to marry early enough for her to
produce children .
- had all her children at an advanced age
- The writer ’emphasizes that in less
developed countries –
- the education of girls is not important
- the non-literate woman has some
advantage because she has more
- the literate female is a threat to the male
in employment
- there is a need to give boys and girls
equal opportunities in education
LEXIS AND STRUCTURE
From the options in questions 6 and 7,
choose the one that best completes the
sentences.
- One of the hens we bought _____ten eggs
already.
- have laid
- has lain
- has layed
- has laid
- My friend and classmate ______ present
when the girls insulted me.
- were
- is
C was
- are
In the following sentences, choose the
word that is similar in meaning to the
word underlined in each of the p.ng
kindly take your time to study carefully
56
- The man’s story gave Us an inkling of
what we went through during the war.
- a taste
- a possible idea
- a wrong notion
- a suggestion
- The statement credited to the honourable
member is an aspersion on the reputation of
my company.
- a libel
- a slander
- a condemnation
- an abuse
In each of the questions 10 and 11,
choose the option that has the same
consonant sound as the one represented
by the letter(s) underlined.
- vision
- attention
- repression
- intention
- illusion
- waste
- surtax
- cursed
- paused
- washed
In each of questions 12 and 13, the
words in capitals have the emphatic
stress. Choose the option that fits, the
word in the sentence.
- My brother bought EXACTLY twenty cups
of rice.
- Who bought exactly twenty cups of beans?
- Did your mother sell exactly twenty cups
of rice?
- Did your mother buy nearly twenty cups of
rice?
- Did your sister buy exactly twenty cups of
rice?
- It is DANGEROUS to drive without spare
tyre.
- Is it safe to drive with spare tyre?
- Is it safe to drive without spare tyre?
- Is it dangerous to fly without spare tyre?
- Is it safe to fly with spare tyre?
In the following sentences, choose the
word that is opposite in meaning to the
word underlined in each of the
sentences.
- Indiscreet actions have always led to
regrets. that is why one should be _____
- judicious
- frugal
- circumspect
- thrifty
- His remark during the send-off party was
very apt to serve as a warning.
- inept
- Foolish
- ridiculous
- silly
rep.ng
kindly take your time to study carefully
59
- Two stones P and Q of different masses
were projected horizontally at different
angles of 15℃ and 75
℃ respectively but with
the same velocity.
The ranges covered by the stones will be
- greater for P
- greater for Q
- same for P and Q
- greater for the heavier of the two stones
- If the torque on a body is zero, the
angular momentum of the body will
- decrease continuously to zero
- increase then decrease to zero
- be constant
- increase continually
- For which of the following quantities is the
derived unit ML2T-2 correct?
- Moment of force
- Acceleration
III. Work
- Momentum
- I and II
- I and III
- Ill and W
- II only
- In which of the following are the
substances arranged in the descending order
of their conductivities?
- copper. steel, glass
- steel, copper, glass
- copper, glass, steel
- glass, copper, steel
- The linear expansivity of brass is
2×10-5/℃; the volume of a piece of brass
10 cm3
at 0
℃, what will be its volume at
100℃ ?
- 10.02 cm3
- 10.04 cm3
- 10.06 cm3
- 10.20 cm3
- The thermometric property of the
thermocouple is that its
- emf changes with temperature
- resistance changes with temperature
- volume changes with temperature.
- resistance changes with length
- A concave lens of focal length 20 cm forms
an image ½ the size of the object, the object
distance is
- 100 cm
- 30 cm
- 60 cm
- 40 cm
- The quality of sound depends on
- frequency
- wavelength
- velocity
- harmonics
- A student with a sight defect has a least
distance of distinct vision of 150 cm. For him
to read a material placed at a distance of 25
cm, what is the focal length of the glasses he
should wear?
- 15.0 cm
- 17.0 cm
- 21.4 cm
- 30.0 cm
- A dynamo primarily converts
- mechanical energy into electrical energy
- electrical energy into kinetic energy
- potential energy into kinetic energy
- kinetic energy into potential energy
- Three capacitors 2μF, 3 μF and 6 μF are
connected in series. If the pd across the
system is 12V, the pd across the 6 μF
capacitor is
- 4V
- 6V
- 12V
- 2V
- A current of 0.5A flows through a resistor
when connected to a 40V battery. The energy
dissipated in 2 minutes is
- 1200 J
- 1500 J
- 2400 J
- 9600 J
- Which of the following is most strongly
deflected by a magnetic field?
- γ-rays
- X
–
rays
- β-rays
- α- rayson of water to calcium oxide leads to
- a physical change
- a chemical change
- the formation of a mixture
- an endothermic reaction
- 15 g of impure Na2CO3 reacted with excess
HNO3. If 0.1 mole of CO, is produced, what
is the percentage purity of the Na2CO3?
[Na=23, C=12, 0 =16]
- 35.3%
- 10.0%
- 70.66%
- 90.0%
- 0.14g of a hydride of carbon occupies
112.0 cm3 at STP when evaporated. The ratio
of carbon to hydrogen is 1:2. The relative
molecular formula is
- C2H4
- C3H6
- C4H8
- C6H12
- A gas X diffuses twice as fast as a gas Y
under the same conditions. If the relative
molecular mass of Y is 112, calculate the
relative molecular mass of X.
- 28
- 14
- 56
- 120
- In the periodic table, what is the property
that decreases along the period and
increases down the group?
- Atomic number
- Electron affinity
- Ionization potential
- Ionic radius
- 10 cm3 of 0.1 M HCL are added to 10 cm3
of NaOH solution containing 8 g of NaOH per
dm3 of solution. What is the pH of the
resulting solution?
- 11
- 13
- 7
- 8
- What is the formula of sodium gallate if
gallium (Ga) shows an oxidation number of
+3?
- NaGaO3
- Na2Ga(OH)2
- NaGa(OH)3
- NaGa(OH)4
- The mass of Ag deposited when a current
of 10 A is passed through a solution of silver
salt for 4830 secs is [Ag = 108, 1F =
96500C]
- 54.0 g
- 27.0 g
- 13.5 g
- 108.0 g
- The solubility of alkanols in water is due to
- their covalent nature
- hydrogen bond
- their low boiling point
- their ionic character
- If a reaction is exothermic and there is a
great disorder, it means
- the reaction is in a state of equilibrium
- there will.be a large increase in free
energy
- there will be a large decrease in free
energy
- the reaction is static
- In what way is the equilibrium constant
for the forward reaction related to that of the
reverse reaction?
- the two equilibrium constants are identical
- the product of the two is expected to be
one
- the product of the two is always greater
than one
- the addition of the two is expected to be
one
- Natural radioactivity is the random
spontaneous disintegration of the nucleus of
heavy isotope certain elements with the
emission of
- α, β and X-rays
- α, β and γ -rays
- a, X and γ
–
rays
- β, X and γ -rays
- Mg ribbon was allowed to bum inside a
giver gas P leaving a white solid residue Q.
Addition of water to Q liberated a gas which
produces dense white fumes with a drop of
hydrochloric acid. The gas P was
- Nitrogen
- Chlorine
CHEMISTRY 2011/2012 QUESTIONSMATHEMATICS 2012/2013 QUESTIONS
- If p, q and r are in the ratio 6:4:5, find the
value of 3?−?
4?+?
- 2
3
- 3
2
- 3
5
- 5
3
- If log10 2 = x and log10 3 = y, express log10
10 + 2log10 6 in terms of x and y.
- 1 – x + 2y
- 1 + 2x + 2y
- 1 + x + 2y
- 1-x + y
- Simplify
1
1
2
⁄
2÷
1
4⁄
??
16
- 3
3
16
1
3
- 3
4
- If the 7th term of an AP is twice the third
term and the sum of the first four terms is
42, find the common difference.
- 3
2
- 2
- 3
- 6
- Find the sure to infinity of the series
2+ 3 2⁄ + 9 8⁄ +27
32 ⁄ + ⋯
- 8
- ½
- 2
- 4
- Evaluate |
cos
2? −2????
2????
2 |
- 4
- 2
- -4
- -2
- The point A has Coordinates (5, 16) and
the point B has coordinates (-4, 4). The
variable point P has coordinates (x, y) and
moves on a path such that AP =2BP. Find the
Cartesian equation of the path of P.
- (x+7)2 + y2 =100
- (x−7)2
+ y
2
=100
- (x+7)
2
+ y
2
+ 100 =0
- (x−7)2 + y2+100= 0
- Simplify 4sinθsin(?
3 − ?)sin(?
3 + ?)
- sin3θ
- cos 3θ
- sin 3θ
- cos 3θ
- The distance points P and Q with
coordinates (ap2, 2ap) and(aq2,
2aq)respectively lie on the curve y2= 4ax.
The tangents to the curve at P and Q meet at
the point T. Find the coordinates of T if pq ≠0
- (apq, a(p + q))
- (a(p+q), apq)
- (-apq, a(p + q))
- (apq, -a(p + q))
- If y=2cos(3x – π), then ??
??
??
- 6sin3x
- -6sin3x
- 6sin(3x – π)
- -6sin(3x – π)
- Find the coordinatesi6f the turning pointy
of the curve y = 27×3 – 27×2 + 4
- (4, 0), (0, 2/3)
- (0, 4), (2/3, 0)
- (0, -4), (-2/3,0)
- (0,-4), (2/3, 0)
- If y= (1+ 2x)3, find ??
??
?? ? = −1
- -3
- 3
- -6
- 6
- An examiner has five envelopes labelled
A to E for each of the five options of a
question paper. In how many ways can the
examiner place one option of the question
paper in each envelope without getting every
option in the envelope?
- 119
- 120
- 25
- 24
- The distribution below shows the money
received by a group of students who share00:00 with a teacher. How much did the
teacher receive?
Amt.
Received
in ₦
200
350
700
1000
No of
Students
1
2
3
5
- Two numbers are removed at random
from the numbers -1, 0, 1. What is the
probability that the product of the numbers
removed is zero?
A.
1
3
B.
2
3
C.
5
9
D.
4
9
MATHEMATICS 2012/2013
ANSWERS
- A 2. B 3. A 4. C 5. A 6. B 7. A 8. C 9. A
- D 11. B 12. D 13. B 14. D 15.