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Which of the following carbocations is m...

Which of the following carbocations is most stable ?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
(a) Here, `(a)` is stable because it would not change to other stable carbocation. It can only change `2^@ C^(oplus)` to `2^@ C^(oplus)`.

Furthermore, `(c)` is stabilised by `1,2,-Me` shift and `(d)` is stabilised by `1,2-H^(oplus)` shift.
.
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