AIIMS2013Chemistry-Aldehydes and Ketones

AIIMS 2013 Chemistry Nucleophilic Addition Reactions MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Arrange the following compounds in increasing order of reactivity towards nucleophilic addition reaction.

(I) C6H5COCH3\text{C}_6\text{H}_5\text{COCH}_3

(II) CH3COC2H5\text{CH}_3\text{CO}-\text{C}_2\text{H}_5

(III) C6H5CHO\text{C}_6\text{H}_5\text{CHO}

(IV) ClCH2CHO\text{Cl}-\text{CH}_2-\text{CHO}

A

IV > III > II > I

B

IV > II > III > I

C

I > II > III > IV

D

III > IV > II > I

Correct Answer

Option A

Detailed Explanation

Two electron releasing alkyl groups in ketones make the carbon less electron deficient in comparison to aldehydes.

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