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Stability of carbocations depends upon t...

Stability of carbocations depends upon the electron releasing inductive effect of groups adjacent to positively charged carbon atom involvement of neighbouring groups in hyperconjugation and resonance.
From the following resonance structures of `CH_3 - underset(* *)overset(* *)O - overset(+)CH_2` predict which of the structures is more stable? : `CH-3 O - overset(+)CH_2` , `CH_3 - underset(* *)overset(+)O = CH_2`, `CH_2 = underset(* *)overset(-)O - CH_3` , All are equally stable

A

`CH-3 O - overset(+)CH_2`

B

`CH_3 - underset(* *)overset(+)O = CH_2`

C

`CH_2 = underset(* *)overset(-)O - CH_3`

D

All are equally stable

Text Solution

Verified by Experts

The correct Answer is:
B
Possible structures for th given ion are `CH_3 - underset(I)O - overset(o+)CH_2 " "CH_3 - underset(II)underset(* *)overset(o+)O = CH_2`
Structure II is more stable because every atom has complete octet.
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