A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of which of the following ?

Question

A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of which of the following ? (A) -I effect of -CH3 groups (B) +R effect of -CH3 groups (C) - R effect of -CH3 groups (D) Hyperconjugation

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/f935e1e6a8800186d4b37bb56c258311-.png" /> Tertiary carbocations are stable due to inductive effect (+I effect of alkyl groups) and hyperconjugation. Tert. carbocation has greater number of alpha H in comparison to sec carbocation. This increases hyperconjugation which results to its greater stability.

Q. A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of which of the following ?

$- I$ effect of $- C H_{3}$ groups

$+ R$ effect of $- C H_{3}$ groups

$- R$ effect of $- C H_{3}$ groups

Hyperconjugation

Tertiary carbocations are stable due to inductive effect (+I effect of alkyl groups) and hyperconjugation.
Tert. carbocation has greater number of alpha H in comparison to sec carbocation. This increases hyperconjugation which results to its greater stability.

Q. A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of which of the following ?

−I effect of −CH3​ groups

+R effect of −CH3​ groups

−R effect of −CH3​ groups

Hyperconjugation

Tertiary carbocations are stable due to inductive effect (+I effect of alkyl groups) and hyperconjugation. Tert. carbocation has greater number of alpha H in comparison to sec carbocation. This increases hyperconjugation which results to its greater stability.

$- I$ effect of $- C H_{3}$ groups

$+ R$ effect of $- C H_{3}$ groups

$- R$ effect of $- C H_{3}$ groups

Tertiary carbocations are stable due to inductive effect (+I effect of alkyl groups) and hyperconjugation.
Tert. carbocation has greater number of alpha H in comparison to sec carbocation. This increases hyperconjugation which results to its greater stability.