CAIE A Level Chemistry 9701 · Carbonyl compounds
Butanone, , and butanal, , are structural isomers with the molecular formula .
Compare the reactions of the two compounds with: (a) Tollens' reagent; (b) alkaline aqueous iodine.
For each reagent, state what you would observe with each compound and explain any difference in behaviour between the two isomers.
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.
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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