Question

Urea + water reaction acidic or basic. Explain

Answer 1

urea is not acidic bcz 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. 
It is basic bcz it reacts with OH.