1.

Assertion: Benzaldehyde is less reactive than ethanal towards nucleophilic attach. ltbr. Reason: All the carbon atoms of benzaldehyde are sp^(2)-hybridized.

Answer»

if both assertion and RESON are TRUE, and reason is the true explanation of the assertion.
If both assertion and reason are true, but reason is not the true explanation of the assertion.
if assertion is true, but reason is false.
If both assertion and reason are false.

Solution :Correct explanation: DUE to ELECTRON donating effect of the benzene ring, the CARBONYL carbon of benzaldehyde is less electrophilic.


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