Q22 / 150 · MHT CET 2025 (21 Apr Shift 2) · Chemistry

Identify the product in the following reaction.

A
Benzene
B
Benzoic acid
C
Benzaldehyde
Correct answer
D
p-Benzoquinone

Solution

Phenol undergoes oxidation with $\mathrm{CrO_3}$ as the oxidizing agent. The hydroxyl group oxidizes to a carbonyl while introducing another carbonyl at the para position, forming a conjugated dione system.

$\mathrm{C_6 H_5 OH} \xrightarrow{\mathrm{CrO_3}} p\text{-benzoquinone}$

Final answer: D. p-benzoquinone

Hence, the correct answer is option: 'D'.

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