CBSE 2025 · Region 1 · Set 1 · Q19 · 2 marks
Would you expect benzaldehyde to be more reactive or less reactive in nucleophilic addition reactions than propanal ? Justify your answer.
Marking-scheme solution
•
Less reactive,
•
The carbon atom of the carbonyl group of benzaldehyde is less electrophilic than carbon
atom of the carbonyl group present in propanal. / The polarity of the carbonyl group is
reduced in benzaldehyde due to resonance.
Aldehydes, Ketones and Carboxylic AcidsChemical Reactions of Aldehydes, Ketones and Carboxylic AcidsUnderstandvery_short_answermedium
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CBSE Class 12 Chemistry past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.