Given below are two statements. One is labelled as Assertion (A) and the other is labelled as reason (R).

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An Intiative by Sri Chaitanya

Both (A) and (R) are true but (R) is not the correct explanation of (A)

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are false

(A) is true but (R) is false

answer is B.

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Detailed Solution

when benzaldehyde condenses with malonic acid in presence of pyridine as a basic catalyst. Here malonic acid and the base present generate a carbanion which acts as a nucleophile and attacks on the benzaldehyde.

The aldehyde group (-CHO) in benzaldehyde is a meta-director as it is an electron-withdrawing in nature. Aldehyde shows -R effect and in its resonance

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