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AIIMS2009Chemistry-Organic Chemistry

AIIMS 2009 Chemistry Stability of Ions MCQ Question

Type: MCQ-conceptual-Hard-Class 11

Decreasing order of stability of ions is

(i) CH3−C+H−CH3\text{CH}_3 - \overset{+}{\text{C}}\text{H} - \text{CH}_3

(ii) CH3−C+H−OCH3\text{CH}_3 - \overset{+}{\text{C}}\text{H} - \text{OCH}_3

(iii) CH3−C+H−COCH3\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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