The most stable carbocation among the followi | vedclass

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(C) The stability of a carbocation is determined by the number of $\alpha$-hydrogens,which relates to the extent of hyperconjugation. More $\alpha$-hy

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(C) The stability of a carbocation is determined by the number of $\alpha$-hydrogens,which relates to the extent of hyperconjugation. More $\alpha$-hydrogens lead to greater stability.$1$. The first structure has $5 \ \alpha$-hydrogens.$2$. The second structure (cyclopentylmethyl carbocation) has $1 \ \alpha$-hydrogen.$3$. The third structure ($1$-methylcyclohexyl carbocation) is a tertiary carbocation and has $7 \ \alpha$-hydrogens.$4$. The fourth structure has $3 \ \alpha$-hydrogens.Comparing the number of $\alpha$-hydrogens: $7 > 5 > 3 > 1$. Therefore,the tertiary carbocation with $7 \ \alpha$-hydrogens is the most stable.

The most stable carbocation among the following is:

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