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

Arrange the following carbanions in the decreasing order of their stability:
$(1) CH_3-CH_2^-, (2) CH_2=CH^-, (3) HC \equiv C^-$

The most stable carbocation is

In the given compound,$Cl$ will be liberated easily in the form of:

Consider the following carbocations:
$I. C_6H_5CH_2^+$
$II. CH_2=CH^+$
$III. CH_3-CH^+(CH_3)$
$IV. CH_3-CH_2^+$
$V. HC \equiv C^+$
Arrange the above carbocations in the order of decreasing stability.

The stability of the following carbocations follows the order:
$I. (CH_3)_3C^{\oplus}$
$II. (CH_3)_2C^{\oplus}(OCH_3)$
$III. CH_3CH_2CH_2CH_2^{\oplus}$
$IV. CH_3CH^{\oplus}CH_2CH_3$

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