Question

Isopropylbenzene on air oxidation followed by dilute acid gives

• A. C\(_6\)H\(_5\)OH
• B. C\(_6\)H\(_5\)COOH
• C. C\(_6\)H\(_5\)CHO
• D. CH\(_3\)CHO

Answer 1

The Correct Option is B

Isopropylbenzene (cumene, C\(_6\)H\(_5\)CH(CH\(_3\))\(_2\)) undergoes air oxidation to form cumene hydroperoxide, which, upon treatment with dilute acid, decomposes via the cumene process to yield phenol (C\(_6\)H\(_5\)OH) and acetone (CH\(_3\)COCH\(_3\)). However, in strong oxidation conditions, the side chain oxidizes to form benzoic acid (C\(_6\)H\(_5\)COOH). Given options, benzoic acid is likely intended.
Answer: C\(_6\)H\(_5\)COOH.