Question

Fog is a colloidal solution of

• A. gas in gas
• B. solid in gas
• C. liquid in gas
• D. None of these

Hint:

Fog and clouds are both examples of aerosols where liquid is dispersed in gas.

Answer 1

The Correct Option is C

Step 1: Basic Principle
Colloidal solutions are classified based on the dispersed phase and the dispersion medium.
Step 2: Solution Procedure:

Fog: Tiny liquid water droplets dispersed in air (gas). So, dispersed phase is liquid, dispersion medium is gas.
Smoke: Solid in gas.
Foam: Gas in liquid.
Cloud: Liquid in gas.

Step 3: Required Answer:
Fog is a colloidal solution of liquid in gas, option (C).