Freon (dichlorodifluoro methane) is used .

Options

A. As a local anaesthetic
B. For dissolving impurities in metallurgical process
C. In refrigerators
D. In printing industry

Answer

**Step-by-Step Solution:**

1. **Identify the Compound**: The compound in question is Freon, specifically dichlorodifluoromethane, which has the chemical formula CCl2F2.

2. **Properties of Freon**:
- Freon is described as an odorless gas.
- It is non-corrosive and non-toxic, making it safe for use in various applications.
- It remains stable even under high temperatures and pressures.

3. **Physical Characteristics**:
- Freon has a low boiling point and low specific heat.
- It can be easily liquefied by applying pressure at room temperature, which is a desirable property for refrigerants.

4. **Applications**:
- Due to its properties, Freon is widely used as a refrigerant.
- It acts as a cooling agent in refrigerators and air conditioning systems.

5. **Conclusion**: Based on the properties and applications discussed, the correct answer to the question regarding the use of Freon (dichlorodifluoromethane) is that it is used in refrigerators.

**Final Answer**: C) In refrigerators.

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