Carbon tetrachloride is used as:

Options

A. An anaesthetic and antiseptic
B. Refrigerant and antiseptic
C. Industrial solvent and fire extinguisher
D. Dry cleaner for clothes

Answer

To determine the uses of carbon tetrachloride (CCl4), we can analyze the provided options and the properties of the compound. Here’s a step-by-step solution:

### Step 1: Identify Carbon Tetrachloride
Carbon tetrachloride is a chemical compound with the formula CCl4. It consists of one carbon atom bonded to four chlorine atoms.

### Step 2: Analyze the Given Options
The question provides four options regarding the uses of carbon tetrachloride:
1. Anesthetic and antiseptic
2. Refrigerant and antiseptic
3. Industrial solvent and fire extinguisher
4. Dry cleaner for clothes

### Step 3: Evaluate Each Option
- **Option A (Anesthetic and antiseptic)**: While carbon tetrachloride has been used historically as an anesthetic, it is not commonly used for this purpose today due to safety concerns. It is not typically classified as an antiseptic.

- **Option B (Refrigerant and antiseptic)**: Carbon tetrachloride was used as a refrigerant in the past, but it is not used as an antiseptic.

- **Option C (Industrial solvent and fire extinguisher)**: Carbon tetrachloride is widely recognized as an industrial solvent, particularly in the paint and coatings industry, as well as for adhesives and sealants. Additionally, it can be used as a fire extinguisher because its dense vapors can suffocate flames by preventing oxygen from reaching the fire.

- **Option D (Dry cleaner for clothes)**: Carbon tetrachloride has been used in dry cleaning processes; however, it is not the primary solvent used today due to health risks.

### Step 4: Conclusion
After evaluating all the options, the most accurate use of carbon tetrachloride is as an **industrial solvent and fire extinguisher**. Therefore, the correct answer is **Option C**.

### Final Answer:
**Carbon tetrachloride is used as an industrial solvent and fire extinguisher (Option C).**

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