Urea has a sharp melting point but glass does not. Explain.

Why ureas has a sharp melting point but glass does not ?

Why does urea have a sharp melting point but glass does not?

Why benzoic acid has a sharp melting point but glass does not?

Why benzoic acid has a sharp melting point but glass does not?

NaCl has a sharp melting point but glass does not -Justify.

Explain why ice has a sharp melting point where as glass melts over a range of temperature ?

Compounds like ice, NaCl etc., have a sharp melting point. However polymers do not have a sharp melting point. Give reasons.

White phosphorus has lower melting point then red phosphours. Explain .

Which has highest melting point ?