Question

Assertion:In the presence of alkaline $KMnO_{4} 4-$ methylacetophenone is oxidised to benzoic acid.
Reason :Keto group is oxidised to $—COOH$ group.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (D)

Alkaline $KMnO_{4}$ will oxidise both, $-CH_{3}$ and $-COCH_{3}$ groups to $-COOH$ group. Hence benzene- $1,4-$ dicarboxylic acid (terephthalic acid) will be formed.