Question

How are reactions of aldehydes and nucleophiles fundamentally different than the reaction between acyl chlorides and nucleophiles?

• A. Aldehydes are readily oxidized by nucleophile to carboxylic acid.
• B. Acyl chloride has a leaving group $C{l}^{-}$ whereas aldehyde does not.
• C. Aldehyde do not form tetrahedral intermediate with nucleophile.
• D. Acyl chloride readily forms enol tautomer.

Answer 1

Answer: (B)

Acyl chloride has a leaving group $C{l}^{-}$ whereas aldehyde does not.

Acyl chloride undergo nucleophilic substitution while aldehydes undergo nucleophilic addition as shown above :

Hence, the correct option is B.