Question

State types of colloid, dispersed phase and dispersion
medium in the following examples:
(1) Smog (2) Sponge (3) Soap foam​

Answer 1

Answer:

(1) solid is DP and gas is DM

(2) gas is DP and solid is DM

(3) gas is DP and solid is DM

Explanation:

Answer 2

Colloid is a mixture of one substance (soluble or insoluble particles) suspended into another substance.

Explanation:

There are four types of colloid- foam, aerosol, sol and emulsifier.

1. Smog is a colloidal solution consisting of solid dispersion phase and gas as dispersion medium. It is an aerosol type of colloid.

2. Sponge consists of liquid as dispersion phase and solid as dispersion medium. It is a foam type of colloid.

3. In soap form, dispersed phase is gas and dispersion medium is liquid. It is foam type of colloid.