Question

2. Reactivity of Aldehydes and Ketones a. Rank the following aldehydes and ketones in order from LEAST reactive to MOST reactive: н" H Н H C b. Justify your answer thoroughly in words: I ш B

Answer 1

Generally Carbonyl Compounds undergo Nucleophilic addition reaction.

Aldehyde is more reactive towards nucleophile than Ketone since it has only one alkyl group while in the case of ketone there are two alkyl groups which decreases the electrophilicity of carbonyl carbon by donating the Electron. Hence ketone is less reactive towards nucleophile.

More the alkyl group (size) ,less le the reactivity of Ketone and Aldehyde. Because of this reason, farmaldehyde is the most reactive carbonyl compound.

Hence order

C < D < A < E < B