JEE Main 2023 — Aldehydes and Ketones Question with Solution
JEE Main 2023 (11 Apr Shift 1)
Question

‘A’ and ‘B’ in the above reactions are:
Choose an option
Show full solutionCorrect option: B

Step-by-step explanation
Oxidation of this substituted ketone will give a ketone and a carboxylic acid. This reaction takes place by the cleavage of carbon atoms near the carbonyl carbon and the nearby carbons. This cleavage can be from both the sides of carbonyl carbon thus producing two different carboxylic acids and ketones. The ketone formed converts to hydrocarbon in the presence hydrazine in alkaline medium. The overall reaction is shown below.

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This is a previous-year question from JEE Main 2023, covering the Aldehydes and Ketones chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.