Which one of the following carbocations is th | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The stability of a carbocation is determined by factors such as resonance,inductive effect,and hyperconjugation. In the given options,the carbocat

Vedclass · Accepted Answer

$CH_2^+=CH-O-CH_3$

Vedclass · Answer

(B) The stability of a carbocation is determined by factors such as resonance,inductive effect,and hyperconjugation. In the given options,the carbocation is in conjugation with an oxygen atom. In option $B$ $(CH_2^+=CH-O-CH_3)$,the oxygen atom has lone pairs that can participate in resonance (delocalization of electrons) to stabilize the positive charge on the carbon atom. This $+M$ (mesomeric) effect of the $-OCH_3$ group is very strong and provides significant stability to the carbocation. In option $A$,the oxygen is separated by a $-CH_2-$ group,reducing the resonance effect. In option $C$,the $-O-CO-CH_3$ group is electron-withdrawing due to the carbonyl group,which destabilizes the carbocation. In option $D$,the fluorine atom is highly electronegative and exerts a strong $-I$ effect,which destabilizes the carbocation. Therefore,the carbocation in option $B$ is the most stable.

Which one of the following carbocations is the most stable?

Similar Questions

The most stable carbanion among the following is

The following carbocation is stabilized by the interaction of the empty $p$ orbital with:

What is the minimum energy required for the homolytic bond fission of the $C-H$ bond in the following molecule?

In which of the following reactions does a rearrangement take place with a change in the carbon skeleton?

Consider the following compound $(X)$:
$H-C \equiv C-CH_2-CH(CH_3)-CH_3$
The most stable and least stable carbon radicals,respectively,produced by homolytic cleavage of the corresponding $C-H$ bond are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module