Colligative properties depend on ___

Options

A. the nature of the solute particles dissolved in solution
B. The number of solute particles in solution
C. the physical properties of the solute particles dissolved in solution
D. the nature of solvent particles

Answer

**Step-by-Step Text 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 of the solute particles.

2. **Key Characteristics of Colligative Properties:**
- They are influenced by the concentration of solute particles.
- They do not depend on the chemical nature of the solute.

3. **Four Main Colligative Properties:**
- **Lowering of Vapor Pressure:** The presence of solute particles decreases the vapor pressure of the solvent.
- **Elevation of Boiling Point:** The boiling point of the solvent increases when a solute is added.
- **Depression of Freezing Point:** The freezing point of the solvent decreases in the presence of a solute.
- **Osmotic Pressure:** The pressure required to stop the flow of solvent into the solution through a semipermeable membrane increases with the concentration of solute particles.

4. **Conclusion:**
- Therefore, colligative properties depend on the number of solute particles in the solution.

**Final Answer:**
Colligative properties depend on the number of solute particles in a solution.

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