Column I
(A) Ideal solution
(B) Solutions showing positive deviations
(C) Solutions showing negative deviations
Column II
(P) Solute-solvent interactions are weaker than solute-solute
(Q) Solute-solvent interactions are similar to solutesolute
(R) Solute-solvent interactions are stronger than solute-solute interactions

Answer

To solve the problem of matching the solutions from Column I with the interactions from Column II, we will analyze each type of solution and its corresponding interactions step by step.

### Step 1: Identify the Characteristics of Each Solution Type

1. **Ideal Solution (A)**:
- In an ideal solution, the interactions between solute-solvent are similar to those between solute-solute and solvent-solvent. This means that the vapor pressure of the solution follows Raoult's law perfectly.
- Therefore, the correct match for ideal solution is **(Q)**: Solute-solvent interactions are similar to solute-solute interactions.

2. **Solutions Showing Positive Deviations (B)**:
- In solutions showing positive deviations, the vapor pressure of the solution is higher than expected. This occurs when the solute-solvent interactions are weaker than the solute-solute interactions.
- Hence, the correct match for positive deviations is **(P)**: Solute-solvent interactions are weaker than solute-solute interactions.

3. **Solutions Showing Negative Deviations (C)**:
- In solutions showing negative deviations, the vapor pressure of the solution is lower than expected. This happens when the solute-solvent interactions are stronger than the solute-solute interactions.
- Thus, the correct match for negative deviations is **(R)**: Solute-solvent interactions are stronger than solute-solute interactions.

### Step 2: Summarize the Matches

Now, we can summarize the matches as follows:
- **A (Ideal solution)** → **Q (Solute-solvent interactions are similar to solute-solute interactions)**
- **B (Solutions showing positive deviations)** → **P (Solute-solvent interactions are weaker than solute-solute interactions)**
- **C (Solutions showing negative deviations)** → **R (Solute-solvent interactions are stronger than solute-solute interactions)**

### Final Answer:

- A → Q
- B → P
- C → R

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