Which is the decreasing order of stability?(i | vedclass

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

Question

(D) The correct order of stability is $(ii) > (i) > (iii)$.$(ii)$ $CH_3-CH^{+}-OCH_3$ is the most stable because the lone pair on the oxygen atom prov

Vedclass · Accepted Answer

$(ii) > (i) > (iii)$

Vedclass · Answer

(D) The correct order of stability is $(ii) > (i) > (iii)$.$(ii)$ $CH_3-CH^{+}-OCH_3$ is the most stable because the lone pair on the oxygen atom provides strong resonance stabilization ($+M$ effect) to the carbocation.$(i)$ $CH_3-CH^{+}-CH_3$ is a secondary carbocation stabilized by hyperconjugation and the inductive effect $(+I)$ of two methyl groups.$(iii)$ $CH_3-CH^{+}-COCH_3$ is the least stable because the carbonyl group $(-COCH_3)$ exerts a strong electron-withdrawing effect ($-I$ and $-M$ effects),which destabilizes the positive charge on the carbon atom.

Which is the decreasing order of stability?
$(i)$ $CH_3-CH^{+}-CH_3$
$(ii)$ $CH_3-CH^{+}-OCH_3$
$(iii)$ $CH_3-CH^{+}-COCH_3$

Similar Questions

Arrange the following carbocations in decreasing order of stability.

What is homolytic cleavage of a covalent bond? Explain with an example. Or,write about bond cleavage and the intermediate free radical.

Which of the following orders regarding relative stability of free radicals is correct?

The species $A$,$B$,$C$,$D$ formed in the following bond cleavages respectively are:

Which of the following carbanions is the most stable?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Which is the decreasing order of stability?$(i)$ $CH_3-CH^{+}-CH_3$$(ii)$ $CH_3-CH^{+}-OCH_3$$(iii)$ $CH_3-CH^{+}-COCH_3$