Question

Hyperconjugation is maximum for which of the following carbocations?

• A. Neo-pentyl
• B. Tert-butyl
• C. Iso-propyl
• D. Ethyl

Answer 1

The correct option is B

Tert-butyl

Always remember,

$⟶$ More the hyperconjugative forms, more the stability.

Now,

We know that the stabilities of carbocation ions is in the order: $3^{\circ }>2^{\circ }>1^{\circ }>C{H}_3$. This is due to a decrease in hyper-conjugative stabilization in the order.

Hyperconjugation is used for explaining stability of tert-butyl.