Smoke is an example of which type of colloid?

Question

Match List I and List II

List II	List II
A. Osmosis	I. Solvent molecules pass through semi permeable membrane towards solvent side.
B. Reverse osmosis	II. Movement of charged colloidal particles under the influence of applied electric potential towards oppositely charged electrodes.
C. Electro osmosis	III. Solvent molecules pass through semi permeable membrane towards solution side.
D. Electrophoresis	IV. Dispersion medium moves in an electric field.

Choose the correct answer from the options given below :

Answer 1

Step 1: Colloid classification basis.
Colloids are categorized by the physical states of dispersed phase and dispersion medium.

Step 2: Composition of smoke.
Smoke comprises fine solid particles suspended in a gaseous medium (air).

Step 3: Identifying the colloid category.
A dispersion of solid or liquid in gas is termed an aerosol; smoke is a solid aerosol.

Step 4: Eliminating alternatives.
Sol is solid-in-liquid, foam is gas-in-liquid, solid sol is solid-in-solid—none match smoke.

Step 5: Conclusion.
Hence, smoke is classified as an aerosol.

Smoke is an example of which type of colloid?

Show Hint

The Correct Option is B

Solution and Explanation

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