Why sugar solube in water?

Answer 1

The sugar we use to sweeten coffee or tea is a molecular solid, in which the individual molecules are held together by relatively weak intermolecular forces. When sugar dissolves in water, the weak bonds between the individual sucrose molecules are broken, and these C_12H_22O_11 molecules are released into solution.

Answer 2

Sugar is soluble in water because it forms hydrogen bonds with water molecules. The hydroxyl groups in sugar molecules can interact with the partially charged oxygen and hydrogen atoms in water, allowing sugar to dissolve and mix with the water molecules. This results in a homogeneous solution of sugar water.