Question

Mark the incorrect combination out of the following examples of colloidal solutions.

	Colloid	Dispersion medium	Dispersed phase
(a)	Smoke	Gas	Solid
(b)	Mist	Gas	Liquid
(c)	Gel	Liquid	Liquid
(d)	Emulsion	Liquid	Liquid

• A. a
• B. b
• C. c
• D. d

Answer 1

Answer: (C)

A colloid is a heterogeneous system in which one substance is dispersed (dispersed phase) as very fine particles in another substance called dispersion medium.
Smoke is a colloid in which Dispersion medium is Gas and Dispersed phase is solid.
Mist is a colloid in which Dispersion medium is Gas and Dispersed phase is liquid.
The gel is a colloid in which Dispersion medium is solid and Dispersed phase is liquid.
Example: Cheese, Butter, jellies, etc.
The emulsion is a colloid in which Dispersion medium is Liquid and Dispersed phase is liquid.