JEE Mains · Chemistry · STD 11 - 8.4. Organic chemistry reaction mechanism
The correct order of the rate of reaction of the following reactants with nucleophile by \(S _{ N } 1\) mechanism is :
(Given : Structure I and II are rigid)

- A \(IV < III < II < I\)
- B \(III < I < II < IV\)
- C \(II < I < III < IV\)
- D \(I < II < III < IV\)
Answer & Solution
Correct Answer
(C) \(II < I < III < IV\)
Step-by-step Solution
Detailed explanation
Rate of \(S_{N}1\propto\) Stability of \(C^{\oplus}\) fromed (I) and (II) are unstable due to Bredt's rule, (I) has more +I effect. \((II) < (I) < (III) < (IV)\).
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