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Question: What is the correct order of decreasing stability of the following cations? \(CH_{3} - \overset{\un...

What is the correct order of decreasing stability of the following cations?

CH3−CI+H−CH3CH_{3} - \overset{\underset{+}{I}}{C}H - CH_{3} CH3−CII+H−OCH3CH_{3} - \overset{\underset{+}{II}}{C}H - OCH_{3}

CH3−CIII+H−CH2−OCH3CH_{3} - \overset{\underset{+}{III}}{C}H - CH_{2} - OCH_{3}

A

II > I > III

B

II > III > I

C

III > I > II

D

I > II > III

Answer

II > I > III

Explanation

Solution

:

Thus, the stability of carbocations decreases in the order: II > I > III.