Question

(a) Explain the terms:
(i) Solution
(ii) Solute
(iii) Solvent

(b) Identify solute and solvent in the following solutions :
(i) Aerated drinks
(ii) Tincture of iodine
(iii) Lemon water

Answer 1

(a)
(i) Solution: Solutions are homogeneous mixtures containing one or more solutes in a solvent.
(ii) Solute: A substance which dissolves in a other substances to form a solution is called solute. Solute is smaller quantity in solution.
(iii) Solvent: A solvent is a medium in which a solute dissolves. It is in large quantity in solution.
Solution = Solute + Solvent

(b)
(i) Aerated drinks: Solute = Carbon dioxide, Solvent = Water
(ii) Tincture of iodine: Solute = Iodine, Solvent = Alcohol
(iii) Lemon water: Solute = Sugar and citric acid, Solvent = Water