Neco Chemistry questions and answers 2023

Neco Chemistry questions and answers 2023

Here is the questionss





I. Pink

ll. Colourless


(i)To give a sharp change in colour at the end of the acid base reaction


(i)the burette must be rinsed with the acid or allow it to drain after rinsing with distilled water

(ii)Air bubble must not be allowed in the burette


Neutralization reaction


I. Hofmann voltameter.

II. Kipp‘s apparatus


Because silver nitrate is photosensitive (i.e.sensitive to light) Therefore,if the silver nitrate is left in sunlight or any bright light, it breaks down (hydrolyses) to give black/brown silver oxide and nitric acid.

Leave a Reply

error: Content is protected !!