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

(C) To determine the stability of carbocations,we consider the electronic effects (resonance,hyperconjugation,and inductive effect).$1$. $CH_3-O-CH_2^

Vedclass · Accepted Answer

$CH_3-O-CH_2^+$

Vedclass · Answer

(C) To determine the stability of carbocations,we consider the electronic effects (resonance,hyperconjugation,and inductive effect).$1$. $CH_3-O-CH_2^+$: The oxygen atom has lone pairs of electrons that can participate in resonance with the empty $p$-orbital of the carbocation $(CH_3-O^+=CH_2)$. This $+M$ (mesomeric) effect provides significant stability.$2$. $(CH_3)_3C^+$: This is a tertiary carbocation stabilized by hyperconjugation from $9$ $\alpha$-hydrogens.$3$. $CH_2=CH-CH_2^+$: This is an allyl carbocation,stabilized by resonance.$4$. Phenyl carbocation $(C_6H_5^+)$: The positive charge is on an $sp$-hybridized carbon atom in the ring,which is highly unstable due to the high $s$-character and lack of resonance stabilization for the positive charge.Comparing these,the resonance stabilization provided by the lone pair on the oxygen atom in $CH_3-O-CH_2^+$ is the most effective in stabilizing the positive charge. Therefore,$CH_3-O-CH_2^+$ is the most stable.

Which of the following is the most stable carbocation?

Similar Questions

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

Which of the following compounds gives the same carbocation on ionization?

The compound shown below undergoes racemization on reaction with aqueous acid. Which of the following structures best represents the intermediate responsible for this process?

Which of the following is the correct decreasing order of stability of carbanions?
$(1) (CH_3)_3C^-$
$(2) (CH_3)_2CH^-$
$(3) CH_3CH_2^-$
$(4) C_6H_5CH_2^-$

Which one among the following carbocations is the most stable?

Vedclass Test Series

Exam Paper Generator

Online Exam Module