Question

Define the terms dispersed phase and dispersion medium with examples.
[2 Marks]

Answer 1

Dispersed phase:

• The component of a colloid that is dispersed in the dispersion medium.

[0.5 Marks]

Dispersion medium:

• The component in which the dispersed phase is suspended is known as the dispersion medium.

[0.5 Marks]

Example:

1. Smoke: An aerosol contains solid(smoke particles) as dispersed phase and gas(air) as dispersion medium.
2. Cheese: A gel contains liquid(water) as dispersed phase and solid(jelly particles) as dispersion medium.

[1 Mark]