The colligative property of a colloidal sol compared to the solution of non-electrolyte of same cancentration will be

Options

A. Same
B. Higher
C. Lower
D. Higher or lower

Answer

To solve the question regarding the colligative properties of a colloidal sol compared to a solution of a non-electrolyte of the same concentration, we will follow these steps:

### Step-by-Step Solution

1. **Understanding Colligative Properties**:
Colligative properties depend on the number of solute particles in a solution, not their identity. These properties include boiling point elevation, freezing point depression, vapor pressure lowering, and osmotic pressure.

**Hint**: Recall that colligative properties are influenced by the quantity of solute particles.

2. **Comparing Non-Electrolyte Solutions**:
In a non-electrolyte solution, the solute does not dissociate into ions. Therefore, the number of solute particles is equal to the number of moles of the solute added to the solution.

**Hint**: Remember that non-electrolytes remain as whole molecules in solution.

3. **Analyzing Colloidal Solutions**:
In a colloidal solution, the particles are larger and can be stabilized by electrolytes. The presence of electrolytes can lead to coagulation, which reduces the effective number of solute particles in the colloidal solution.

**Hint**: Consider how electrolytes affect the stability of colloidal particles and their ability to remain dispersed.

4. **Effect of Coagulation**:
Coagulation occurs when colloidal particles aggregate, which decreases the number of effective solute particles in the colloidal solution. This means that the colligative properties will be lower in a colloidal solution compared to a non-electrolyte solution of the same concentration.

**Hint**: Think about how aggregation of particles impacts the number of particles contributing to colligative properties.

5. **Conclusion**:
Since the number of solute particles in a colloidal solution is effectively lower due to coagulation compared to a non-electrolyte solution, the colligative properties of the colloidal solution will also be lower.

**Final Answer**: The colligative property of a colloidal sol compared to the solution of a non-electrolyte of the same concentration will be lower.