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Which of the following is the least stab...

Which of the following is the least stable carbocation?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
B

The order of stability can be explained on the basis of dispersal of positive charge by electron releasing +I effect of groups. Greater the number of alkyl groups on the carbon carrying positive charge, greater would be the dispersal of charge, and hence, more stable will be the carbocation.
Benzyl >Tertiary > Secondary > Primary
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