Match List-I with List-II.
| List-I Colloid type | List-II Example |
| A. Gel | I. Fog |
| B. Solid sol | II. Whipped cream |
| C. Foam | III. Jellies |
| D. Aerosol | IV. Foam rubber |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → A-III, B-IV, C-II, D-I
A. Gel — This matches III. Jellies. A liquid dispersed in a solid (also cheese, butter).
B. Solid sol — This matches IV. Foam rubber. A gas dispersed in a solid (also pumice stone).
C. Foam — This matches II. Whipped cream. A gas dispersed in a liquid (also froth, soap lather).
D. Aerosol — This matches I. Fog. A liquid dispersed in a gas (also mist, cloud).
Shortcut: The pair B-IV appears in Options (2) and (4), and A-III then leaves only Option (2).
Note: This question is from the pre-rationalised NCERT book (2022-23). The topic is not there in the latest NCERT book (2026-27), and it is also out of the CUET 2026 syllabus.
NCERT (Pre-rationalised edition, 2022-23):
Classification Based on Physical State of Dispersed Phase and Dispersion Medium – …
