CANDIDATES’ WEAKNESSES
Candidates could not:
- list three deductions that can be made from the qualitative and quantitative analysis of an organic compound;
- state what would be observed when concentrated hydrochloric acid reacts with K2Cr2O7;
- write a balanced chemical equation to show the acidic nature of C2H2 when reacted with sodium;
- describe the processes involved in the purification of water for human consumption;
- describe one effect of acid rain on building.
The following remedies were however suggested:
Candidates should
- understand the demands of the questions before responding to them;
- improve on their mathematical skill;
- ensure coverage of the syllabus before the commencement of examination;
- know the difference between naming of compounds and writing of formulae;
- learn how deduce the structures of compounds from reaction schemes.