Which is the most stable cation?

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(A) To determine the stability of carbocations,we consider resonance,hyperconjugation,and inductive effects.$1$. $C_6H_5-CH_2^+$ is a benzyl carbocati

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$C_6H_5-CH_2^+$

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(A) To determine the stability of carbocations,we consider resonance,hyperconjugation,and inductive effects.$1$. $C_6H_5-CH_2^+$ is a benzyl carbocation,which is stabilized by resonance with the benzene ring.$2$. $CH_2=CH-CH_2^+$ is an allyl carbocation,which is stabilized by resonance.$3$. $CH_3-CH^+-CH_3$ is a secondary $(2^\circ)$ carbocation,stabilized by hyperconjugation ($6$ $\alpha$-hydrogens).$4$. $HO-CH_2^+$ is stabilized by the $+M$ effect of the oxygen lone pair.Comparing these,the benzyl carbocation $(C_6H_5-CH_2^+)$ is significantly more stable due to extensive delocalization of the positive charge over the entire benzene ring compared to the allyl or secondary carbocation.

Similar Questions

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

Which of the following is the most stable among the given ions?

The correct stability order for the following carbocations is:

Arrange the following carbocations in the increasing order of stability with respect to their labels:
Label Carbocation
$1$ $CH_3-CH^+-CH_3$
$2$ $CH_3^+$
$3$ $(CH_3)_3C^+$
$4$ $CH_3-CH_2^+$

$A$ species having carbon with a sextet of electrons and which can act as an electrophile is called:

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Label	Carbocation
$1$	$CH_3-CH^+-CH_3$
$2$	$CH_3^+$
$3$	$(CH_3)_3C^+$
$4$	$CH_3-CH_2^+$