Maximum lowering of vapour pressure is observed in the case of :

Options

A. 0.1 M glucose
B. `0.1 M BaCl_(2)`
C. `0.1 M MgSO_(4)`
D. 0.1 NaCl

Explanation

To solve the question regarding which solute causes the maximum lowering of vapor pressure, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Vapor Pressure**:
- Vapor pressure is the pressure exerted by a vapor in equilibrium with its liquid or solid phase. When a non-volatile solute is added to a solvent, the vapor pressure of the solvent decreases.

2. **Concept of Lowering of Vapor Pressure**:
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