Which of the following carbocation is most stable?

$left parenthesis CH subscript 3 right parenthesis subscript 3 straight C. straight C with plus on top straight H subscript 2$
$left parenthesis CH subscript 3 right parenthesis subscript 3 space straight C with plus on top$
$CH subscript 3 CH subscript 2 straight C with plus on top straight H subscript 2$
$CH subscript 3 straight C with plus on top HCH subscript 2 CH subscript 3$

Solution

left parenthesis CH subscript 3 right parenthesis subscript 3 space straight C with plus on top

The order of stability of carbocation is 3° > 2° > 1°

left parenthesis straight a right parenthesis space stack open parentheses CH subscript 3 close parentheses subscript 3 straight C space minus space straight C with plus on top straight H subscript 2 with 1 degree space Carbocation below left parenthesis straight b right parenthesis space stack left parenthesis CH subscript 3 right parenthesis subscript 3 straight C with plus on top with 3 degree space Carbocation below left parenthesis straight c right parenthesis space space stack CH subscript 3 CH subscript 2 straight C with plus on top straight H subscript 2 with 1 degree space Carbocation below left parenthesis straight d right parenthesis space space stack CH subscript 3 straight C with plus on top HCH subscript 2 CH subscript 3 with 2 degree space Carbocation below

Some More Questions From Organic Chemistry – Some Basic Principles and Techniques Chapter

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