JEE Main 2023ChemistryAldehydes and KetonesHardMCQ

JEE Main 2023Aldehydes 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
Correct answer
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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About this question

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.