Question

3. The least reactive compound among the following carbonyl compounds towards nucleophilic
addition reactions is
a. benzaldehyde b. p-nitrobenzaldehyde a. p-methylbenzaldehyde b. acetophenone​

Answer 1

Answer:

please ask the question properly ...

Answer 2

Acetophenone

Explanation:

Reactivity of a carbonyl compound towards nucleophilic addition reactions depends on its e- density. e− density at carbonyl carbon increases with increase in the +I effect. This +I effect is the least in aldehydes. So Acetophenone will be the least reactive towards nucleophilic addition reactions among the given carbonyl compounds.

Order of reactivity is as follows:

Acetophenone < p-methylbenzaldehyde < Benzaldehyde < p-Nitrobenzaldehyde

Acetophenone is the answer.