Which of the following is the most stable car | vedclass

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

Question

(D) The stability of a carbocation is determined by the electronic effects of the substituents attached to the benzene ring.Electron-donating groups $

Vedclass · Accepted Answer

$p-CH_3O-C_6H_4-CH_2^+$

Vedclass · Answer

(D) The stability of a carbocation is determined by the electronic effects of the substituents attached to the benzene ring.Electron-donating groups $(EDG)$ increase the stability of a carbocation by donating electron density through resonance or inductive effects.Electron-withdrawing groups $(EWG)$ decrease the stability of a carbocation by withdrawing electron density.In the given options:$1$. $-NO_2$ is a strong $EWG$ ($-M$ and $-I$ effect).$2$. $-Cl$ is an $EWG$ ($-I$ effect,though it has $+M$ effect,the $-I$ effect dominates in this position).$3$. $-H$ is the reference (no effect).$4$. $-OCH_3$ is an $EDG$ ($+M$ effect).Since $-OCH_3$ is an electron-donating group,it stabilizes the positive charge on the benzylic carbon most effectively.Therefore,$p-CH_3O-C_6H_4-CH_2^+$ is the most stable carbocation.

Which of the following is the most stable carbocation?

Similar Questions

Homolytic fission of $C-C$ bond in ethane gives an intermediate in which carbon is

Arrange the following carbocations in decreasing order of their stability:
$\stackrel{+}{C}H_3, (CH_3)_3\stackrel{+}{C}, CH_3\stackrel{+}{C}H_2, (CH_3)_2\stackrel{+}{C}H$

Which of the following is more stable than the remaining three?

Among the following structures,which will show the most stable enamine formation?
(Where $Me$ is $-CH_{3}$)

The order of circled $C-H$ bond dissociation energy in the following compounds is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module