Question

Rosenmund reduction gives

• A. Aldehyde
• B. Ether
• C. Carboxylic acid
• D. Hydrocarbon

Hint:

Rosenmund reduction selectively reduces acyl chlorides to aldehydes, not further to alcohols.

Answer 1

The Correct Option is A

Step 1: Recall reaction.
Rosenmund reduction is catalytic hydrogenation of acid chlorides (R–COCl) using Pd/BaSO$_4$ poisoned catalyst.
Step 2: Write reaction.
R–COCl + H$_2$ $\xrightarrow{Pd/BaSO_4}$ R–CHO (aldehyde).
Step 3: Conclude.
The product is always aldehyde. Final Answer: \[ \boxed{Aldehyde} \] % Quciktip