The false statements among the following are I. A primary carbocation is less stable than a tertiary carbocation. II. A secondary propyl carbocation is less stable than allyl carbocation. III. A tertiary free radical is more stable than a primary free radical. IV. Isopropyl carbanion is more stable than ethyl carbanion.

Question

The false statements among the following are I. A primary carbocation is less stable than a tertiary carbocation. II. A secondary propyl carbocation is less stable than allyl carbocation. III. A tertiary free radical is more stable than a primary free radical. IV. Isopropyl carbanion is more stable than ethyl carbanion. (A) I and II (B) II and Ill (C) I and IV (D) II and IV

Tardigrade Admin · Accepted Answer

Statements II and IV are wrong since 2° propyl carbocation is little more stable than allyl carbocation and ethyl carbanion is more stable than isopropyl carbanion.

I and II

II and Ill

I and IV

II and IV

Statements II and IV are wrong since 2∘ propyl carbocation is little more stable than allyl carbocation and ethyl carbanion is more stable than isopropyl carbanion.

Statements II and IV are wrong since $2^{\circ}$ propyl carbocation is little more stable than allyl carbocation and ethyl carbanion is more stable than isopropyl carbanion.