CAIE A Level Chemistry 9701 · Carboxylic acids and derivatives
A student plans to prepare two esters in the laboratory.
Ester 1: ethyl ethanoate, from ethanol and ethanoyl chloride Ester 2: phenyl benzoate, from phenol and benzoyl chloride
Explain, with reference to these two examples, how alcohols react with acyl chlorides to form esters.
6 marks, so the mark scheme is looking for about 6 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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