In the solution solute and solvent particles diffuse to each other in such a way that they cannot be distinguished.
The radius of solute particles in a solution is less than 10-7 cm. The solution is permanent and transparent.
Four important colligative properties of solutions are vapour pressure depression, boiling point elevation, freezing point depression and osmotic pressure.
These properties depend on the nature of dissolved particles (solute).
Water is a good solvent due to its high dielectric constant.
