Column - I and Column - II contains four emtries each. Entries of Column -I are to be matched with some entries of Column - II . One or more than one entries of Column -I may have the matching with the same entries of Column - II.
`{:("column-I","column-II"),((A) As_(2)S_(3)"sol","(P) Lyophobic colloid"),("(B) sulphur sol ",(Q) " Macromolecualr colloid"),("(C) starch","(R) Multimolecular colloid "),("(D)Soap","(S) Associated colloid "):}`

Answer

To solve the matching question between Column-I and Column-II, we will analyze each entry in Column-I and determine its corresponding matches in Column-II.

### Step-by-Step Solution:

1. **Identify the first entry in Column-I: As₂S₃ sol**
- As₂S₃ (Arsenic trisulfide) is a type of colloid that is classified as a **lyophobic colloid** because it does not easily mix with the solvent.
- Additionally, it is a **multimolecular colloid** since it consists of many small particles (molecules) that aggregate together.
- **Matches:** (P) Lyophobic colloid, (R) Multimolecular colloid.

2. **Identify the second entry in Column-I: Sulphur sol**
- Sulphur sol is also a **lyophobic colloid** as it does not mix well with the solvent.
- Like As₂S₃, it is also classified as a **multimolecular colloid** due to the presence of many small sulphur particles.
- **Matches:** (P) Lyophobic colloid, (R) Multimolecular colloid.

3. **Identify the third entry in Column-I: Starch**
- Starch is a large macromolecule, which means it is classified as a **macromolecular colloid** due to its large size and structure.
- **Matches:** (Q) Macromolecular colloid.

4. **Identify the fourth entry in Column-I: Soap**
- Soap can form micelles in solution, which makes it an **associated colloid**. This type of colloid is characterized by the association of smaller molecules into larger aggregates when in a solvent.
- **Matches:** (S) Associated colloid.

### Final Matches:
- (A) As₂S₃ sol → (P) Lyophobic colloid, (R) Multimolecular colloid
- (B) Sulphur sol → (P) Lyophobic colloid, (R) Multimolecular colloid
- (C) Starch → (Q) Macromolecular colloid
- (D) Soap → (S) Associated colloid

### Summary of Matches:
- A → P, R
- B → P, R
- C → Q
- D → S