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Chemistry · Alkyl and Aryl Halides

JEE Main 2026 — 21 January, Evening Shift — Question 54

The correct order of reactivity of the following benzyl halides towards reaction with KCN is:

Question figure
  1. Option A:

    a>b>c>da>b>c>d

  2. Option B:

    b>a>d>cb>a>d>c

    Correct
  3. Option C:

    b>a>c>db>a>c>d

  4. Option D:

    a>b>d>da>b>d>d

Answer: B

Step-by-step solution

This is SN1\mathrm{S}_{\mathrm{N}} 1 reaction. Rate of SN1\mathrm{S}_{\mathrm{N}} 1 reaction ∝\propto stability of carbocation

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Paper
21 January, Evening Shift
Subject
Chemistry
Chapter
Alkyl and Aryl Halides
Topic
Introduction to Alkyl Halides and Methods of Preparation
The correct order of reactivity of the following benzyl halides… | JEE Main 2026 PYQ with Solution · DhiX AI