In the synthesis of pyridine by Chichibabin synthesis, synthesis of acroloien is done which method?

In the synthesis of pyridine by Chichibabin synthesis, synthesis of acroloien is done which method? Correct Answer Knoevenagel Condensation

Acrolein is formed in a Knoevenagel condensation from the acetaldehyde and formaldehyde. It is then condensed with acetaldehyde and ammonia into dihydropyridine.
Bissoy MCQ

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Which polymer gives dark brown precipitate when its pyridine solution is heated in the presence of alcoholic NaOH solution?
Pyridine is a which type of heterocyclic compound from the following options?
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The electron of Nitrogen participating in the resonance in pyridine is present in which orbital?