Question

What type of colloid is fog?

• A. Aerosol
• B. Foam
• C. Gel
• D. Emulsion

Hint:

Liquid in Gas = Liquid Aerosol (Fog, Mist). Solid in Gas = Solid Aerosol (Smoke, Dust).

Answer 1

The Correct Option is A

Step 1: Understanding the Question:
Colloids are classified based on the physical state of the dispersed phase and the dispersion medium.
Step 2: Detailed Explanation:
Fog consists of tiny droplets of water (liquid) suspended in the air (gas).
- Dispersed Phase: Liquid
- Dispersion Medium: Gas
A colloidal system where a liquid is dispersed in a gas is specifically called a liquid aerosol.
Step 3: Final Answer:
Fog is an example of an aerosol.