Which of the following is a chlorofluocarbon?

Options

A. ` CFSO_2`
B. ` CF_2Cl_2`
C. ` FClCO_2`
D. ` ClF_2C`

Answer

**Step-by-Step Solution:**

1. **Understand Chlorofluorocarbons (CFCs):**
- Chlorofluorocarbons, commonly known as CFCs, are chemical compounds that contain chlorine, fluorine, and carbon. They are known to deplete the ozone layer.

2. **Identify the Chemical Structure:**
- The general formula for a chlorofluorocarbon is represented as CFxCly, where x and y are the number of fluorine and chlorine atoms, respectively. A common example is CF2Cl2.

3. **Evaluate the Given Options:**
- The question provides multiple options, and we need to identify which one is a chlorofluorocarbon.
- The options include:
- CFSO4
- CF2Cl
- O
- CF2

4. **Analyze Each Option:**
- **CFSO4:** This compound contains sulfur (S), which is not part of the chlorofluorocarbon definition. Therefore, it is not a CFC.
- **CF2Cl:** This compound contains carbon (C), fluorine (F), and chlorine (Cl), fitting the definition of a chlorofluorocarbon. Thus, this is a correct option.
- **O:** This is simply oxygen and does not contain any chlorine or fluorine, so it cannot be a CFC.
- **CF2:** This compound contains carbon and fluorine but lacks chlorine, which is essential for it to be classified as a chlorofluorocarbon.

5. **Conclusion:**
- Based on the analysis, the correct answer is **CF2Cl**, as it meets the criteria for being a chlorofluorocarbon.