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Simun Mishra posted an Question

July 20, 2020 • 22:06 pm

30 points

IIT JAM
Chemistry (CY)

Most stable carbocation among the following ?

2 Answer(s)

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Dinesh khalmaniya 1

In the tertiary carbocation shown above, the three alkyl groups help to stabilize the positive charge. In a secondary carbocation, only two alkyl groups would be available for this purpose, while a primary carbocation has only one alkyl group available. Thus the observed order of stability for carbocations is as follows: tertiary > secondary > primary > methyl.
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I know sir I m confused in the structure
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why are you confused?
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Dinesh khalmaniya 1 Best Answer

stability of carbocation= 3°>2°>1°. in option A carbocation is 3° so it is most stable
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but sir this structure can't effect the Stability of the carbon cation
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??
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yes, effect but here first we will consider degree of carbocation
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if degree of carbocation is same than other effect such as stereic hinderence, ring strain
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yes yes ...I m asking for that ..why apply degree rule and when ither
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got it?
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yes tq sir u got the point what I want to know
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and answer depends on question. many factors are affecting
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ok sir ...
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Suman Kumar

It has 7 alpha H Simun.
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More the number of alpha hydrogen more will be hyperconjugation more will be the stability.
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Suman Kumar

Option A is correct
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Did you get this Simun
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yes
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