CAIE A Level Chemistry 9701 · Nitrogen compounds
A student prepares a primary amide and a primary amine in the laboratory. She finds that the amine reacts readily with dilute acid to form a salt, but the amide does not. Explain, in terms of the structure of the amide, why amides are much weaker bases than amines.
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Explain means: Give the reasons or the mechanism: why or how something happens. Link each point to the next with because, so or which means. A list of facts with no links usually loses the reasoning marks.
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