Question
Chemistry Question on Aldehydes, Ketones and Carboxylic Acids
Ease of nucleophilic addition in the given compounds is
A
I > III > II
B
II > III > I
C
II > I > III
D
III > I > II
Answer
II > III > I
Explanation
Solution
Aromatic aldehydes and ketones are less reactive than the corresponding aliphatic analogues towards nucleophilic addition reactions due to the +R effect of benzene ring. Further, aldehydes are more reactive than ketones due to +I effect and steric effect of alkyl group. Therefore, the ease of nucleophilic addition will follow the order