Which of the following is correct?

Options

A. Water can be used for extinguishing fires caused due to electrical faults.
B. Carbon is not a metal so it cannot be used in electrolytic cell.
C. A liquid conducts electricity because of the presence of ions.
D. Pure water forms ions to conduct electricity.

Answer

To determine which of the statements provided is correct, we need to analyze each one carefully.

### Step-by-Step Solution:

1. **Analyze the first statement**: "Water can be used for extinguishing fire caused due to electrical faults."
- This statement is **incorrect**. Water is a conductor of electricity, and using it on electrical fires can lead to electrocution or further spread of the fire.

2. **Analyze the second statement**: "Carbon is a non-metal, not a metal so it cannot be used in an electrolytic cell."
- This statement is **incorrect**. While carbon is indeed a non-metal, it can still be used in electrolytic cells as an electrode material due to its conductive properties.

3. **Analyze the third statement**: "Water can be used for extinguishing fire caused due to electrical faults."
- This statement is a repetition of the first statement and is still **incorrect** for the same reasons mentioned above.

4. **Analyze the fourth statement**: "Pure water forms iron to conduct electricity."
- This statement is **incorrect**. Pure water is a poor conductor of electricity. It does not form iron; rather, it requires impurities (like salts) to conduct electricity effectively.

### Conclusion:
None of the statements provided are correct.