CAIE A Level Chemistry 9701 · Hydroxy compounds
A student prepares the ester ethyl ethanoate and then hydrolyses samples of it in two separate experiments. In experiment 1, the ester is heated under reflux with dilute aqueous sodium hydroxide. In experiment 2, the ester is heated under reflux with dilute sulfuric acid.
Compare these two reactions. In your answer, refer to the reagents and conditions used, the products formed, and how the reactions differ in terms of reversibility.
7 marks, so the mark scheme is looking for about 7 separate creditworthy points. Making the same point twice in different words earns it once.
Compare means: Give similarities or differences between two things, and say which side each point belongs to. Write each point as a pair, for example: A is X, whereas B is Y. Two separate descriptions rarely earn the marks.
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