JEE Main Chemistry question

Chemistry Haloalkanes and Haloarenes JEE Main

Consider the bromides (A) a simple secondary alkyl bromide, (B) a tertiary allylic bromide, (C) another simple secondary alkyl bromide. The correct order of SN1 reactivity is

(A)(B)>(C)>(A)Correct
(B)(B)>(A)>(C)
(C)(C)>(B)>(A)
(D)(A)>(B)>(C)

Answer: (A)

Solution

Bromide (B), being both tertiary and allylic, ionizes to a carbocation stabilized by both hyperconjugation/induction (tertiary character) and resonance (allylic conjugation), making it by far the

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Question ID VK-139277