Question

Association of molecules in water is due to

Answer 1

The extensive association of water molecules with one another in either the liquid or the solid state is due to hydrogen bonds (dotted lines) between the electronegative oxygen atom of one water molecule and the electropositive hydrogen atoms of adjacent molecules.

Answer 2

Chemical association, the aggregation of atoms or molecules into larger units held together by forces weaker than chemical bonds that bind atoms in molecules. The term is usually restricted to the formation of aggregates of like molecules or atoms. Polymerisation also denotes the formation of larger units of like small units but usually with chemical bonds between the smaller units.

[Thank You]