Match LIst I with LIst II

Choose the correct answer from the options given below:

(A)-(I), (B)-(IV), (C)-(III), (D)-(II)

The correct answer is option 3. (A)-(I), (B)-(IV), (C)-(III), (D)-(II).

Let us break down each pair of items from List I and List II:

(A) Liquid in solid - (I) Hydrated salt: When a solid contains water molecules within its crystal structure, it is referred to as a hydrated salt. In this case, the presence of water molecules makes the solid appear as if it contains liquid within it.

(B) Gas in solid - (IV) Dissolved gases in minerals: Gases can be dissolved within the crystal lattice of certain minerals. These dissolved gases are trapped within the solid structure and are not visibly distinct. This phenomenon represents the presence of gas within a solid.

(C) Gas in liquid - (III) Aerated drinks: Aerated drinks, such as carbonated beverages, contain dissolved gases (usually carbon dioxide) within the liquid phase. The gas is dissolved under pressure and released when the pressure is reduced, resulting in the characteristic effervescence or bubbling seen in aerated drinks.

(D) Solid in gas - (II) Camphor in nitrogen gas: Camphor is a solid compound that can sublimate directly into a gaseous state without passing through the liquid phase. When camphor is placed in a container of nitrogen gas, it exists as a solid dispersed within the gas phase.

Therefore, the correct matches are: (A)-(I), (B)-(IV), (C)-(III), (D)-(II)

Option 3 correctly matches each type of substance in List I with its corresponding description in List II.