AIIMS 2009 Chemistry Stability of Ions MCQ Question with Solution

Decreasing order of stability of ions is

(i) $\text{CH}_3 - \overset{+}{\text{C}}\text{H} - \text{CH}_3$

(ii) $\text{CH}_3 - \overset{+}{\text{C}}\text{H} - \text{OCH}_3$

(iii) $\text{CH}_3 - \overset{+}{\text{C}}\text{H} - \text{COCH}_3$

A

(i) > (ii) > (iii)

B

(ii) > (i) > (iii)

C

(ii) > (iii) > (i)

D

(iii) > (i) > (ii)

Correct Answer

Option B

Detailed Explanation

The dispersal of the charge stabilizes the carbocation.

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