Aldehydes and Ketones - Result Question 51

61. A compound $C _9 H _7 O _2 Cl$ exists predominantly in enol form $(A)$ and also in keto form $(B)$. On oxidation with $KMnO _4$ it gives $m$-chlorobenzoic acid as one of the products. Identify the compounds $(A)$ and $(B)$.

(2003)

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