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The increasing order of reactivity of th...

The increasing order of reactivity of the following bromides in `S_(N)1` reaction is

A

`IVgtIIIgtIgtII`

B

`IIIgtIVgtIgtII`

C

`IIgtIIIgtIgtIV`

D

`IIgtIIIgtIVgtI`

Text Solution

Verified by Experts

The correct Answer is:
A
II is most reactive as it produces an aromatic carbocation while IV is less reactive as it produces a non-resonance stabilised carbocation. III is least reactive than I as former involve an anti-aromatic carbocation.
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