Question

In the following sequence of reaction, 

The product C is

(a) C₆H₅COOH

(b) C₆H₅CH₃ 

(c) C₆H₅CH₂OH

(d) C₆H₅CHO

Answer 1

Correct Option (d) C₆H₅CHO

Explanation:

Toluene undergoes oxidation with KMnO₄, forms benzoic acid. In this conversion, alkyl part of toluene converts into carboxylic group. Further, benzoic acid reacts with thionyl chloride (SOCl₂) to give benzoyl chloride which upon reduction with H₂/Pd or BaSO₄ forms benzaldehyde (Rosenmund Reduction)