Smoke is an example of:

Practice MCQ for SSC, UPSC, RRB Exams

A. Solution A.

B. Suspension B.

C. Emulsion C.

D. Aerosol D.

Smoke is an example of D) Aerosol.

Key Details:

An aerosol is a type of colloid where solid or liquid particles are dispersed in a gas.
Smoke consists of tiny solid particles suspended in air, making it a classic example of an aerosol.

Why other options are incorrect:

Solution: A solution is a homogeneous mixture where the solute (dissolved particles) is uniformly distributed in the solvent (dispersing medium). But, Smoke is not a homogeneous mixture, as the solid particles are not evenly distributed in the air. They can settle down over time.
Suspension: A suspension is a heterogeneous mixture where relatively large solid particles are suspended in a liquid. Smoke particles are small, but they are still considered solid particles dispersed in a gas (air), not a liquid.
Emulsion: An emulsion is a colloid where liquid droplets are dispersed in another liquid. Smoke consists of solid particles dispersed in a gas, not liquid droplets.

Practice MCQ for SSC, UPSC, RRB Exams