Question: 66. Match the List-I with List-II.
| List-I (Example) | List-II (Type of Solution) |
|---|---|
| A. Humidity | I. Solid in solid |
| B. Alloys | II. Liquid in gas |
| C. Amalgams | III. Solid in gas |
| D. Smoke | IV. Liquid in solid |
(1) A-II, B-IV, C-I, D-III
(2) A-II, B-I, C-IV, D-III
(3) A-III, B-I, C-IV, D-II
(4) A-III, B-II, C-I, D-IV
Answer: Option (2)
Explanation:
Different common mixtures can be classified as solutions based on the physical states of solute and solvent.
A. Humidity
Humidity represents the amount of water vapour present in air.
Here, liquid water is dispersed in a gaseous medium (air).
So, humidity is a solution of liquid in gas.
A matches with II.
B. Alloys
Alloys are homogeneous mixtures of two or more metals or a metal with a non-metal.
Both solute and solvent are in solid state.
So, alloys are solutions of solid in solid.
B matches with I.
C. Amalgams
Amalgams are solutions of metals dissolved in mercury.
Mercury is a liquid and the dissolved metal is solid.
Thus, amalgams are solutions of solid in liquid, commonly represented as liquid in solid in given options.
C matches with IV.
D. Smoke
Smoke consists of fine solid particles dispersed in air.
Thus, it is a solution of solid in gas.
D matches with III.
Therefore, the correct matching is A-II, B-I, C-IV, D-III,
which corresponds to Option (2).