Which carbocation is the least stable?

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Question

(A) The stability of carbocations is determined by factors such as inductive effect,hyperconjugation,and resonance. $1$. $(CH_3)_3C^+$ is a tertiary c

Vedclass · Accepted Answer

$H_3C^+$

Vedclass · Answer

(A) The stability of carbocations is determined by factors such as inductive effect,hyperconjugation,and resonance. $1$. $(CH_3)_3C^+$ is a tertiary carbocation,which is highly stable due to the $+I$ effect of three methyl groups and hyperconjugation. $2$. $(CH_3)_2CH^+$ is a secondary carbocation,which is moderately stable. $3$. $CH_2=CH-CH_2^+$ is an allyl carbocation,which is stabilized by resonance. $4$. $H_3C^+$ is a methyl carbocation,which has no alkyl groups to provide electron density through $+I$ effect or hyperconjugation. Therefore,$H_3C^+$ is the least stable carbocation.

List-$I$ (Carbocation)	List-$II$ (Type)
$A$. $CH_3-C^{+}(CH_3)-CH_3$	$I$. Secondary carbocation
$B$. $CH_3-C^{+}H-CH_3$	$II$. Methyl carbocation
$C$. $CH_3-CH_2^+$	$III$. Primary carbocation
$D$. $CH_3^+$	$IV$. Tertiary carbocation

Similar Questions

The stability of carbanions follows the order:
$I: CH_3CH_2CH_2\bar{C}H_2$
$II: CH_3\bar{C}HCH_2CH_3$
$III: (CH_3)_3\bar{C}$
$IV: CH_3\bar{C}(Ph)CH_2CH_3$

The stability order of the following carbocations is:

Match the following columns and select the correct option.

List-$I$ (Carbocation) List-$II$ (Type)

$A$. $CH_3-C^{+}(CH_3)-CH_3$ $I$. Secondary carbocation

$B$. $CH_3-C^{+}H-CH_3$ $II$. Methyl carbocation

$C$. $CH_3-CH_2^+$ $III$. Primary carbocation

$D$. $CH_3^+$ $IV$. Tertiary carbocation

Which of the following carbocations is the most stable?

Most stable carbocation is

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