Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Chemical Kinetics

Question:

Match LIst I with List II

List I

State of dispersed phase and dispersion medium

List II

Example of colloidal system

a. Dispersed phase: Solid

Dispersion medium: Liquid

I. Soap lather

b. Dispersed phase: Liquid

Dispersion medium: Solid

II. Paints

c. Dispersed phase: Gas

Dispersion medium: Liquid

III. Pumice stone

d. Dispersed phase: Gas

Dispersion medium: Solid

IV. Jellies

Choose the correct answer from the options given below:

Options:

a-III, b-IV, c-II, d-I

a-IV, b-I, c-III, d-II

a-II, b-IV, c-I, d-III

a-I, b-II, c-IV, d-III

Correct Answer:

a-II, b-IV, c-I, d-III

Explanation:

The correct answer is option 3. a-II, b-IV, c-I, d-III.

a-II: This matches paints, where pigment particles (solid) are dispersed in a volatile liquid (liquid) medium that evaporates after application, leaving the pigment embedded in the solid film.

b-IV: This matches jellies, where liquid fruit juices (liquid) are trapped within a rigid network of gelatin (solid) particles.

c-I: This matches soap lather, where air bubbles (gas) are dispersed within a soapy water solution (liquid) medium.

d-III: This matches pumice stone, which is a natural volcanic rock containing numerous air bubbles, making it a solid dispersed in gas (air).