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The compound formed when malonic ester is heated with urea is

1. Cinnamic acid
2. Butyric acid
3. Barbituric acid
4. Crotonic acid

Correct answer: Barbituric acid

Solution

When malonic ester reacts with urea under heating, it undergoes a condensation reaction to form barbituric acid, a well-known heterocyclic compound.

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