Correct order of reactivity towards nucleophilic addition in the following compounds is

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I > IV > II > III

I > III > IV > II

II > IV > III > I

II > IV > I > III

answer is D.

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Detailed Solution

Aldehydes are more reactive than ketones towards nucleophilic addition.

Explanation :-

I) Steric hindrance on carbonyl carbon is lesser in aldehydes.

II) Electrophilicity of carbonyl carbon is more in aldehydes Lesser the +I groups (alkyl groups), more the electrophilicity of carbonyl carbon.

$∴$ III is least reactive

EWG (NO₂) increase the reactivity towards nucleophilic addition

EDG(-CH₃) decreasethe reactivity towards nucleophilic addition.

Reactivity :

II > IV > I > III

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