Urea is

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Question

(A) Urea $(NH_2CONH_2)$ contains a carbonyl group attached to two amino groups. Due to the resonance effect,the lone pair on the nitrogen atoms is inv

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Monoacidic base

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(A) Urea $(NH_2CONH_2)$ contains a carbonyl group attached to two amino groups. Due to the resonance effect,the lone pair on the nitrogen atoms is involved in delocalization,making it a weak base. It reacts with one equivalent of a strong acid like nitric acid $(HNO_3)$ to form urea nitrate $(NH_2CONH_2 \cdot HNO_3)$. Therefore,it acts as a monoacidic base.

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