Water of often treated with chlorine to

Options

A. kill germs
B. remove hardness of water
C. to remove suspended particles
D. to increase oxygenation

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks why water is often treated with chlorine. This involves knowing the purpose of chlorination in water treatment.

2. **Definition of Chlorination**: Chlorination is the process of adding chlorine or chlorine-containing compounds (like sodium hypochlorite) to water. This is a common method used in water treatment facilities.

3. **Function of Chlorine**: Chlorine acts as a disinfectant. Its primary role is to kill germs and pathogens present in the water. This is crucial for ensuring that the water is safe for human consumption.

4. **Evaluating the Options**:
- **Option A: Kill germs**: This is correct because the main purpose of adding chlorine to water is to disinfect it by killing harmful microorganisms.
- **Option B: Remove hardness of water**: This is incorrect. Chlorine does not remove hardness; hardness is typically addressed through other methods like ion exchange or reverse osmosis.
- **Option C: Remove suspended particles**: This is also incorrect. Chlorine does not specifically target suspended particles; other filtration methods are used for that purpose.
- **Option D: Increase oxygenation**: This is incorrect as well. Chlorine does not increase the oxygen content in water; oxygenation is a separate process.

5. **Conclusion**: Based on the evaluation of the options, the correct answer is that water is often treated with chlorine to kill germs.

**Final Answer**: Water is often treated with chlorine to kill germs.

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