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What is the correct order of reactivity towards nucleophilic addition?

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in Chemistry – Class 12 by (188k points)
What is the correct order of reactivity towards nucleophilic addition?

(a) Benzaldehyde > Benzophenone > Acetophenone

(b) Benzophenone > Benzaldehyde > Acetophenone

(c) Acetophenone > Benzaldehyde > Benzophenone

(d) Benzaldehyde > Acetophenone > Benzophenone

I had been asked this question in exam.

This is a very interesting question from Aldehydes and Ketones Chemical Reactions in portion Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

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Correct option is (d) Benzaldehyde > Acetophenone > Benzophenone

The best I can explain: Generally, the aromatic carbonyl compounds are less reactive than corresponding aliphatic compounds. From benzaldehyde to acetophenone to benzophenone, the number of electron releasing groups increases and the magnitude of positive charge on carbonyl carbon reduces, hence decreasing its reactivity towards nucleophile attack.

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