(a) Define solution.

(b) Give different types of solutions with one example each.

(a) Solution: It is a homogeneous mixture of two or more substances. It consists of solute and solvent.

(b) Different types of solution:

(i) Based on solvent—Aqueous and non-aqueous Aqueous solution has water as solvent (sugar + water) Non aqueous solution has some other solvent but not water. Example, (sulphur + carbon disulphide)

(ii) Depending on the amount of solute dissolved in solvent—Dilute solution and concentrated solution

Dilute solution: Less amount of solute particles are present in a solvent.

Concentrated solution: Amount of solute present in its maximum capacity in a solvent.

(iii) Amount of solute present in its maximum capacity at a given temperature—Saturated and unsaturated solution.

Saturated solution: It is a solution in which no more solute can further dissolve in a given solvent at a given temperature.

Unsaturated solution: It is a solution in which some more solute can dissolve in a solvent at a given temperature.

(iv) Depending on the size of solute particles

True solution	Suspension	Colloid
Size is very small and particles cannot be seen through naked eyes	Size is very big and can be seen through naked eyes	Size is intermediate between true solution and suspension