Neco biology practical specimen

Neco 2020 Practical Specimens CHEMISTRY PRACTICAL SPECIMEN: Requirements: (a) One burette (50cm³) (b) One pippete (20cm³/25cm³). However, all candidates in a center must use pipettes of the same volume. (c) The usual apparatus and reagents for qualitative work including: (i) Dilute sodium hydroxide solution (ii) Dilute ammonia solution (iii) Dilute hydrochloric acid (iv) Barium chloride … Read more