What are colligative properties?

Explanation

The properties which do not depend on the chemical nature of the solute but depends only on the number of solute particles present in the solution are called colligative properties e.g.,
(i) Relative lowering of vapour pressure `- (P ^(@) P)/(P^(@))`
(ii) Osmotic pressure `-pi`
(iii) Elvation of boiling point `-Delta T_(b)`
(iv) Depression in freezing point `- Delta T _(r).`