The osmotic pressure of pure and clean water is

Options

A. 0
B. 1
C. 2
D. 10

Answer

To determine the osmotic pressure of pure and clean water, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Osmotic Pressure**: Osmotic pressure is the pressure required to prevent the flow of water across a semipermeable membrane, which separates two solutions of different concentrations. It is influenced by the concentration of solutes in a solution.

2. **Defining Pure Water**: Pure water is defined as water that does not contain any solutes. This means that there are no dissolved substances in it.

3. **Analyzing the Osmotic Pressure of Pure Water**: Since osmotic pressure is dependent on the presence of solutes, the osmotic pressure of pure water is negligible. In fact, it can be considered to be zero because there are no solutes to exert any pressure.

4. **Conclusion**: Therefore, the osmotic pressure of pure and clean water is zero.

### Final Answer:
The osmotic pressure of pure and clean water is **zero**.

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