Question

Considering the below chemical reaction, identity the product “$X$”:

• A.

  

• B.

  

• C.

  

• D.

  

Answer 1

The correct option is C

Explanation for correct option:

C

• The given reaction is the oxidation of $4-$methoxy toluene.
• In the oxidation of toluene benzoic acid is formed.
• Methoxy group is an activating group, hence unaffected by alkaline ${\mathrm{KMnO}}_4$.
• ${\mathrm{KMnO}}_4$ is an oxidizing agent which oxidize the methyl group to $-\mathrm{COOH}$ group.
• Hence, the product ‘’$X$‘’ is $4-$methoxy benzoic acid.

Explanation for incorrect option:

A

• The compound given here is $1-$methyl phenol.
• But, in the oxidation of $4-$methoxy toluene the product formed is $4-$methoxy benzoic acid.
• Hence this option is incorrect.

B

• The compound given here is $4-$methoxy benzaldehyde.
• But, in the oxidation of $4-$methoxy toluene the product formed is $4-$methoxy benzoic acid.
• Hence this option is incorrect.

D

• The compound given here is $4-$methoxy benzenemethanol.
• But, in the oxidation of $4-$methoxy toluene the product formed is $4-$methoxy benzoic acid.
• Hence this option is incorrect.

Hence option C is correct, the product formed by oxidation of $4-$methoxy toluene is $4-$methoxy benzoic acid.