Question

The dispersed phase and dispersion medium of fog respectively are:
A.Solid, liquid
B.Liquid, liquid
C.Liquid, gas
D.Gas, liquid

Answer 1

Hint: Colloid is a homogeneous non crystalline substance consisting of ultramicroscopic particles of one substance which is dispersed in a second substance. Gels, sols and emulsions are the example of colloids.

Complete step by step answer:
Dispersed phase: In a two phase system, the finely divided particles, also known as colloidal particles, are distributed through another substance, these distributed colloidal particles contribute to form dispersed phase.
Dispersed medium: The medium in which the colloidal particles are distributed is known as dispersed medium.
Example: In starch solution, starch represents the dispersed phase and water represents the dispersion medium.
The dispersed phase and dispersed medium, basically both of them are categorized as solid, liquid and gas according to their physical states.
In the case of fog the dispersed phase is liquid and the dispersion medium is gas. It means that water droplets are scattered in air where water droplets are liquid and dispersed phase while air is gas and also a dispersion medium.
So, option (C) is correct.

Note:
Colloidal solutions are also termed as colloidal suspensions. It is basically a mixture in which the substances are suspended in a fluid. The particle which we are naming as a colloid is a very tiny particle that spreads itself in another substance uniformly.