Chemistry Aldehydes, Ketones & Carboxylic Acid NEET Previous Year Question Single Correct MCQ
Published on: August 13, 2026

Acetaldehyde reacts with

A
electrophiles only
B
nucleophiles only
C
free radicals only
D
both electrophiles and nucleophiles.

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Text Solution

Verified by Experts
The correct answer is:
B

Acetaldehyde reacts only with nucleophiles. Since the mobile ‐electrons of

carbon oxygen double bond are strongly pulled towards oxygen, carbonyl carbon is electron deficient and carbonyl oxygen is electron rich. Thus, the electron deficient carbonyl carbon is most susceptible to attack by electron rich nucleophilic reagent, i . e ., by base.

The nucleophile, then attacks the protonated carbonyl group to form addition product.

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