Reactivity towards nucleophilic addition reaction of $I . H C H O$ $I I . C H_{3} C H O$ $I I I . C H_{3} C O C H_{3}$ is:

I I > I I I > I

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I I I > I I > I

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I > I I > I I I

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I > I I I > I I

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Solution

The correct option is C $I > I I > I I I$
The nucleophilic addition reaction is the characteristic addition of carbonyl compounds. Reactivity order of carbonyl compounds in the order.

This is due to increase in the intensity of charge on carbon of carbonyl group due to $+ I$ -effect of alkyl groups.

Aldehydes are more reactive than ketones and also steric factor decreases rate.

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Reactivity towards nucleophilic addition reaction of I.HCHO II.CH3CHO III.CH3COCH3 is:

Reactivity towards nucleophilic addition reaction of $I . H C H O$ $I I . C H_{3} C H O$ $I I I . C H_{3} C O C H_{3}$ is: