Question

Urea behave as mono acid base explain

Answer 1

The structure of urea is H2N-C(=O)-NH2. If a proton (H+) were extracted from one of the nitrogen atoms, the resulting urea anion would not be stabilized by delocalization. So it is not acidic. The material itself is neutral. However, it will slowly hydrolyze to ammonia and carbonic acid. Carbonic acid will, in turn, disproportionate to carbon dioxide and water. So a fresh solution of urea should be nearly neutral. An aged solution will have a basic pH