What is the product obtained when phenylethene is treated with $\mathrm{KMnO}_4$ in dilute $\mathrm{H}_2…

What is the product obtained when phenylethene is treated with $\mathrm{KMnO}_4$ in dilute $\mathrm{H}_2 \mathrm{SO}_4$ ?
  1. $\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{CHO}$
  2. $\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{COOH}$
  3. $\mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH}$
  4. $\mathrm{C}_6 \mathrm{H}_5 \mathrm{COCH}_3$

Solution

Acidic potassium permanganate oxidizes phenylethene to benzoic acid. This is called oxidative cleavage of alkenes.

Asked in: MHT CET 2024 (10 May Shift 1)

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