CAIE A Level Chemistry 9701 · Hydroxy compounds
A student prepares ethyl ethanoate by two methods. In method 1, ethanol is warmed with ethanoyl chloride. In method 2, ethanol is warmed with ethanoic acid and a few drops of concentrated sulfuric acid. Compare the two methods, considering the type of reaction, the conditions, the rate, and the yield of ethyl ethanoate.
5 marks, so the mark scheme is looking for about 5 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.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.