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JEE Mains · Chemistry · STD 11 - 8.4. Organic chemistry reaction mechanism

The correct order of reactivity of the following benzyl halides towards reaction with KCN is:
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  1. A a > b > c > d
  2. B b > a > d > c
  3. C b > a > c > d
  4. D a > b > d > c
Verified Solution

Answer & Solution

Correct Answer

(B) b > a > d > c

Step-by-step Solution

Detailed explanation

This is \(S_{N}1\) reaction. Rate of \(S_{N}1\) reaction \(\propto\) stability of carbocation.
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