Explain the following terms with suitable examples.
(a) Gel (b) Liquid Aerosol (b) Hydrosol

Answer

(a) Gel- a colloidal dispersion of a liquid in a solid, e.r., butter
(b) Liquid aerosol - a colloidal dispersion of a liquid in a gas, e.g., fog
(c) Hydrosol- a colloidal sol of a solid in water as the dispersion medium, e.g, starch sol or gold sol.