Question

The compound formed as a result of oxidation of ethyl benzene by KMnO₄ is

• A. Benzyl alcohol
• B. Acetophenone
• C. Benzoic acid
• D. Benzophenone

Answer 1

Answer: (C)

When oxidises with alkaline ${\text{KMnO}}_4$ or acidic ${\text{Na}}_{\text{2}}{\text{Cr}}_{\text{2}}{\text{O}}_{\text{7}}\text{,}$ the entire side chain ( in benzene homologues ) with atleast one $\text{H}$ at $\alpha$ - carbon , regardless of length is oxidised to $-\text{COOH}\text{.}$