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Arrange the following carbonyls in decreasing order of reactivity towards Nucleophilic Addition Reac — Reaction Mechanism Chemistry Question

Question

Arrange the following carbonyls in decreasing order of reactivity towards Nucleophilic Addition Reactions: Formaldehyde (I), Acetone (II), Acetaldehyde (III).

Answer: A

💡 Solution & Explanation

Reactivity drops as steric hindrance and $+I$ electron-donating alkyl groups increase. Formaldehyde (no alkyls) > Acetaldehyde (1 methyl) > Acetone (2 methyls).

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