Which of the following carbocations will unde | vedclass

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(A) Carbocation rearrangement occurs to form a more stable carbocation (e.g.,from primary to secondary or secondary to tertiary,or via ring expansion)

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(A) Carbocation rearrangement occurs to form a more stable carbocation (e.g.,from primary to secondary or secondary to tertiary,or via ring expansion). In option $A$ (image $350-$a530),the carbocation is a secondary carbocation on a cyclohexane ring. It can undergo a $1,2$-hydride shift to form a more stable tertiary carbocation. In option $B$ (image $350-$b530),the carbocation is a tertiary carbocation already,so it is relatively stable and less likely to undergo rearrangement compared to the secondary one in $A$. Therefore,the secondary carbocation in $A$ is the most prone to rearrangement to achieve greater stability.

Which of the following carbocations will undergo rearrangement?

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(Note: The image shows the structures of these carbanions.)

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