Match List - I with List - II:
List - I (Example of Colloids): (a) Cheese (b) Pumice stone (c) Hair cream (d) Cloud
List - II (Classification): (i) dispersion of liquid in liquid (ii) dispersion of liquid in gas (iii) dispersion of gas in solid (iv) dispersion of liquid in solid
Choose the most appropriate answer from the option given below:
List - I (Example of Colloids): (a) Cheese (b) Pumice stone (c) Hair cream (d) Cloud
List - II (Classification): (i) dispersion of liquid in liquid (ii) dispersion of liquid in gas (iii) dispersion of gas in solid (iv) dispersion of liquid in solid
Choose the most appropriate answer from the option given below:
- (A)(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
- (B)(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
- (C)(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)✓ Correct
- (D)(a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
Answer: (C)
Solution
Each colloid is named by its dispersed phase followed by its dispersion medium. Cheese is milk fat held within a solid protein network, a liquid dispersed in a solid. Pumice stone is volcanic glass set around trapped bubbles, a gas dispersed in a solid. Hair cream is an emulsion, one liquid dispersed in another. A cloud is fine water droplets suspended in air, a liquid dispersed in a gas. The match is cheese with liquid in solid, pumice stone with gas in solid, hair cream with liquid in liquid and cloud with liquid in gas.
JEE Main · 2021 · 25 Jul 2021 · Shift 2 · Single correct option