JEE Main 2022ChemistryAldehydes and KetonesHardMCQ

JEE Main 2022 — Aldehydes and Ketones Question with Solution

JEE Main 2022 (25 Jul Shift 1)

Question

Which one of the following reactions does not represent correct combination of substrate and product under the given conditions?

Choose an option

Show full solutionCorrect option: C
Correct answer
C

Step-by-step explanation

Cyanide on reduction with DIBAL-H gives aldehyde. Acid halide with rosenmund reduction reaction gives aldehyde. So, all these reaction are correct except benzyl alcohol with oxidation with strong oxidising agents sodium dichromate will give carboxylic acid not the aldehyde.

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About this question

This is a previous-year question from JEE Main 2022, 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.