Question

The most unstable carbocation, amongst the following, is
a) (CH₃)₃C⁺
b) (CH₃)₂CH⁺
c) CH₃-CH₂⁺
d) CH₃⁺

Answer 1

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Option C is Correct


CH₃-CH₂⁺

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Answer 2

Hi Anji,

● Answer -

d) CH₃⁺

● Explaination -

As you may know stability of carbocations follows following trend -

methyl < 1° < 2° < 3°

Given carbocations -

(CH3)3C• => 3° carbocation

(CH3)2CH• => 2° carbocation

CH3CH2• => 1° carbocation

CH3• => methyl carbocation

Increasing order of stability of given carbocations -

CH₃⁺(methyl) < CH₃-CH₂⁺(1°) < (CH₃)₂CH⁺(2°) < (CH₃)₃C⁺(3°)

Hence, the most unstable carbocation is CH₃⁺ .

Hope you understand..