Solution A contains 7 g/L of `MgCl_(2)` and solution B contains 7 g/L of NaCl. At room temperature, the osmotic pressure of :

Options

A. solution A is greater than B
B. both have same osmotic pressure
C. solution B is greater than A
D. cannot be determined

Explanation

To solve the problem of comparing the osmotic pressures of solution A (MgCl₂) and solution B (NaCl), we will follow these steps:

### Step 1: Understand Osmotic Pressure
Osmotic pressure (π) is a colligative property that depends on the number of solute particles in a solution. The formula for osmotic pressure is given by:
\[ \pi = i \cdot C \cdot R \cdot T \]
where:
- \( \pi \) = osmotic pressure
- \( i \) = van 't Hoff factor (number of particles the solute dissociates into)
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