Home Chemistry General Organic Chemistry NEET Previous Year Question Consider the reaction : CH 3 CH 2 CH 2 Br + …
Chemistry General Organic Chemistry NEET Previous Year Question Single Correct MCQ
Published on: August 14, 2026

Consider the reaction :

CH 3 CH 2 CH 2 Br + NaCN CH 3 CH 2 CH 2 CN + NaBr

This reaction will be the fastest in :

A
water
B
ethanol
C
methanol
D
N,N’-dimethylformamide (DMF)

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Text Solution

Verified by Experts
The correct answer is:
D

(Polar aprotic solvent)

CH 3 —CH 2 —CH 2 —Br + NaCN CH 3 —CH 2 —CH 2 —CN + NaBr

This is a S N 2 Reaction for which polar aprotic medium is suitable for faster rate of reaction.

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