Sodium chloride is soluble in water but insoluble in benzene or hexane. Explain in the observation.

Sodium chloride is soluble in water but insoluble in benzene or hexane

1.	Sodium chloride is soluble in water but insoluble in benzene or hexane. Explain in the observation.
Answer» Solution :SODIUM chloride is an ionic solid and water is a polar SOLVENT. Water molecules attract `Na^(+) and Cl^(-)` ions by their negative and positive poles RESPECTIVELY. As a result, theions get detached from the crystal lattice and undergo solvation with the evolution of solvation enegy. in this case, SINCE the solvation ENERGY is greater than lattice energy. NaCl dissolves in water. on the other hand, benzene and hexane are non-polar organic solvents and they cannot solvate `Na^(+) and Cl^(-)` ions. hence, sodium chloride is insoluble in benzene or hexane.