Weakness and Remedies

Candidate could not:

• state the factors that should be considered when siting a chemical industry;
• state the advantages of using a catalyst over high temperatures in chemical reactions;
• state the factors that may influence the value of electron affinity;
• explain carbohydrates;
• give corresponding correctly written and balanced equations for suggested methods of preparing salts;
• explain why certain properties of Beryllium and its compounds differ from those of magnesium and its compounds.
• write a balanced equation for the reaction between iodine and aqueous sodium trioxothiosulphate (VI);
• describe how to determine a proportion of hardness in a given sample of water;
• explain why water is referred to as universal solvent.

The following remedies were however suggested:

• candidates should be familiar with the examination syllabus
• understand the demands of the questions before responding to them;
• learn to explain concepts using appropriate technical terms,
• improve on their communication skills when responding to examination questions.