SATHEE: Some Basic Principles Of Organic Chemistry Question 210

Some Basic Principles Of Organic Chemistry Question 210

Question: Among the given cations, the most stable carbonium ion is [IIT-JEE 1981]

Options:

A) sec-butyl

B) ter-butyl

C) n-butyl

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

$\underset{, 3^{o}}{C H_{3} - \underset{C H_{3}}{\overset{C H_{3}}{\underset{|,}{\overset{|}{C^{+},}},}}, >} \underset{, 2^{\circ}}{C H_{3} - \underset{C H_{3}}{\underset{|}{C H {_{}^{}}^{+}},}, >} \underset{\begin{matrix} \begin{matrix} \begin{matrix} 1^{o} \end{matrix} \end{matrix} \end{matrix}}{C H_{3} - C H {_{2}^{}}^{+}}, > \underset{\begin{matrix} \begin{matrix} \begin{matrix} Methyl \\ c a r b o c a t i o n \end{matrix} \end{matrix} \end{matrix}}{C H {_{3}^{}}^{+},},$ Greater the no.

of alkyl groups, greater would be the dispersal of the charge and hence more stable will be the carbonium ion.

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Some Basic Principles Of Organic Chemistry Question 210

Question: Among the given cations, the most stable carbonium ion is [IIT-JEE 1981]

Options:

Answer:

Solution:

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