Some Basic Principles Of Organic Chemistry Question 203

Question: Which amongst the following is the most stable carbocation [CBSE PMT 2005]

Options:

A) $ CH_3-\underset{CH_3}{\mathop{\underset{|}{\overset{+}{\mathop{C}}},\ \ \ \ }}, $

B) $ CH_3-\underset{CH_3}{\overset{CH_3}{\mathop{\underset{|\ \ }{\overset{|\ \ }{\mathop{{C^{+}}}}},\ \ }}}, $

C) $ \overset{+}{\mathop{C}},H_3 $

D) $ CH_3\overset{+}{\mathop{C}},H_3 $

Show Answer

Answer:

Correct Answer: B

Solution:

$ CH_3-\underset{CH_3}{\overset{CH_3}{\mathop{\underset{|,}{\overset{|}{\mathop{{C^{+}}}}},\ \ \ }}}, $ Due to (+I) effect of three methyl group 3° carbocation is more stable.



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