Identity the most stable cation in the following set of ions giving reason :
$C H_{3} + C H_{2}$ , $(C H_{3})_{3} + C$

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Solution

Between $C H_{3} \oplus C H_{2}$ & $(C H_{3})_{3} \oplus C,$ $(C H_{3})_{3} C^{\oplus}$ is the most stable as it is a tertiary carbocation.
Stability of carbocation increases with the number of alkyl groups bonded to the charge-bearing carbon.
$3^{o}$ carbocation has more hyperconjugation effect with $9 α -$ hydrogens and thus, is more stable.

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Similar questions

C H_{3} C H_{2} C H_{2} \oplus C H_{2}, C H_{3} \oplus C H C H_{2} C H_{3}, (C H_{3})_{2} \oplus C C H_{2} C H_{3}, (C H_{3})_{3} \oplus C

{(C H_{3})}_{3} C^{\oplus}

C H_{3} \oplus C H_{2}

\oplus C H_{3}

Which of the following carbocation is most stable?

(a) (b) (c)

(d)

1. C H_{3} - C \equiv C - C H_{3}

2. C H_{3} - C H_{2} - C H_{2} - C H_{3}

3. C H_{3} - C H_{2} C \equiv C H

4. C H_{3} - C H = C H_{2}

C H_{3}

C H_{3}

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C H_{3} - C - C H_{2} - B r + N a O H ⟶ C H_{3} - C - C H_{2} - C H_{3}

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C H_{3}

O H

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