CANDIDATES’ WEAKNESSES
Candidates could not:
- State one main source of sulphur (IV) oxide used in contact process;
- Name one catalyst used in contact process;
- Write the equation for the reaction in the absorption tower;
- Write the formula of sodium trioxonitrate (V) decahydrate
- Write the formula of potassium tetraoxosulphate (V);
- List two uses of producer gas;
- State one similarity between saponification and neutralization reactions
The following remedies were however suggested.
Candidates should:
- Understand the demands of the questions before responding to them;
- Learn to explain concepts using appropriate technical terms;
- Learn to answer questions on reaction schemes;
- Read and understand the rubrics of the questions before responding to them;.