Phosgene is:

Options

A. Carbonyl chloride
B. Anaesthetic
C. Chloroform
D. Both (1) and (2)

Answer

**Step-by-Step Solution:**

1. **Identify the Compound:**
- The question asks about Phosgene. We need to determine its chemical identity.

2. **Write the Chemical Formula:**
- Phosgene is represented by the chemical formula COCl₂. This indicates that it consists of one carbon atom (C), one oxygen atom (O), and two chlorine atoms (Cl).

3. **Common Name and Alternative Name:**
- Phosgene is also known as Carbonyl Chloride. This name is derived from its chemical structure.

4. **Properties of Phosgene:**
- Phosgene is recognized as a harmful or toxic gas. It is important to note that it poses health risks upon exposure.

5. **Preparation of Phosgene:**
- Phosgene can be produced through the reaction of Chloroform (CHCl₃) with oxygen (O₂) under photochemical conditions. This reaction highlights the importance of storing Chloroform in dark-colored bottles to prevent its conversion to Phosgene.

6. **Distinguish from Chloroform:**
- It is crucial to differentiate Phosgene from Chloroform. While Chloroform has anesthetic properties, Phosgene does not. This distinction is important when evaluating the options provided.

7. **Evaluate the Options:**
- The options provided include:
1. Carbonyl Chloride
2. Anesthetic
3. Both 1 and 2
- Based on our analysis:
- Option 1 (Carbonyl Chloride) is correct.
- Option 2 (Anesthetic) is incorrect as it refers to Chloroform.
- Option 3 (Both 1 and 2) is also incorrect.

8. **Conclusion:**
- The correct answer is Option 1: Carbonyl Chloride.

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