The colligative properties of a solution depend on

Options

A. The number of solute particles present in it
B. The chemical nature of the solute particles present in it
C. The nature of the solvent used
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding Colligative Properties**:
- Colligative properties are properties of solutions that depend on the number of solute particles in a given amount of solvent, rather than the identity or nature of those particles.

2. **Identifying Key Characteristics**:
- The key characteristic of colligative properties is that they are influenced solely by the quantity of solute particles, not their chemical identity. This means that whether the solute is salt, sugar, or any other substance, the effect on the solution's properties will depend on how many particles are present.

3. **Analyzing the Options**:
- Option A: Number of solute particles present in the solution.
- Option B: Chemical nature of the solute particle.
- Option C: Nature of the solvent used.
- Option D: None of these.

4. **Evaluating Each Option**:
- Option A is correct because colligative properties depend on the number of solute particles.
- Option B is incorrect because the chemical nature of the solute does not affect colligative properties.
- Option C is also incorrect as the nature of the solvent does not influence these properties.
- Option D is incorrect since option A is a valid answer.

5. **Conclusion**:
- The colligative properties of a solution depend on the number of solute particles present in it. Therefore, the correct answer is **Option A**.

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