Question

Which one of the following is correct ?
I. $C{H}_3-C{H}_2-C{D}_2^{+}$
II. $C{H}_3-C{H}_2-C{T}_2^{+}$
(Explain on the basis of inductive effect)

• A. I is more stable than II
• B. II is more stable than I
• C. Both are equally stable
• D. Stability criterion cannot be applied in this case

Answer 1

The correct option is B II is more stable than I

The $+I$ effect of $-T$ is higher than that of $-D$ due to the higher electronegativity of $-D$ than that of $-T$. Therefore, II carbocation is more stable than I carbocation.