Which of the following is an example of an Emulsion?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Milk
An emulsion is a colloid in which tiny droplets of one liquid are spread through another liquid that does not mix with it. Milk is an emulsion: droplets of liquid fat are dispersed in water.
Why the other options are incorrect
Option (1) Fog — Incorrect. Fog is an aerosol: water droplets dispersed in air, a liquid in a gas.
Option (2) Clouds — Incorrect. Clouds are also an aerosol of water droplets (and ice) in air.
Option (3) Mist — Incorrect. Mist is a thinner aerosol of water droplets in air near the ground.