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Question

Chemistry Question on Organic Chemistry- Some Basic Principles and Techniques

Which of the following carbocations will be most stable ?

A

Ph3C+Ph_{3} C^{ +}

B

CH3C+H2CH_{3}-\overset {+}CH_{2}

C

(CH3)2C+H\left(CH_{3}\right)_{2} \overset{+} CH

D

CH2=CHC+H2CH_{2} =CH-\overset{+} CH_{2}

Answer

Ph3C+Ph_{3} C^{ +}

Explanation

Solution

The order of stability of given carbocations is
Ph3C+highly resonance stabilised>CH2=CHC+H2resonance stabilised>\underset{\text{highly resonance stabilised}}{Ph_3C^+} > \underset{\text{resonance stabilised}}{CH_2 = CH - \overset{+}{C}H_2} >
(CH3)2C+Hstabilised by hyper conjugation>CH3C+H2\underset{\text{stabilised by hyper conjugation}}{(CH_3)_2\overset{+}{C}H} > CH_3 \overset{+}{C}H_2