JEE Main 2023 — Aldehydes and Ketones Question with Solution
JEE Main 2023 (29 Jan Shift 2)
Question
Find out the major products from the following reaction sequence.
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
Cyanide ion acts as a nucleophile and attacks the carbonyl group of the methyl ketone forming a cyanohydrin ion, which on attack by ethanol ion leads to formation of carboxyl group and on further hydrolysis forms an ester. The alkanide ion from the grignard reagent then attacks the carbonyl of ester twice to form a diol with two alcohol groups attached to a carbon. The sequence of reactions are given 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.