Compare the stability of the following carbocation:a)(i)andgt;(ii)andgt;(iii)b)(iii)andgt;(ii)andgt;(i)c)(iii)andgt;(i)andgt;(ii)d)(i)andgt;(iii)andgt;(ii)Correct answer is option 'A'. Can you explain this answer?

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Compare the stability of the following carbocation:

a)
(i)>(ii)>(iii)
b)
(iii)>(ii)>(i)
c)

(iii)>(i)>(ii)
d)

(i)>(iii)>(ii)

Correct answer is option 'A'. Can you explain this answer?

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Compare the stability of the following carbocation:a)(i)>(ii)>(i...

The stability of the given carbocations can be compared by the hyperconjugation effect. Since, hyperconjugation refers to the delocalization of electrons with the participation of bonds of primarily σ−character. For transfer of σ−electrons, we have to break either C−H,C−D or C−T bond. since, atomic mass increases from H to D and to T. Hence, bond strength also increases as C−H<C−D<C−T. So, C−H bond breaks easily. So, (i) has a higher hyperconjugation tendency and it is more stable than the other two. Hence, the order of stability is (i)>(ii)>(iii).

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