When chloroform is exposed to light and damp air, it gives among other products

Options

A. Carbon tetrachloride
B. Carbonyl chloride
C. Mustard gas
D. Carbon monoxide.

Explanation

To solve the question regarding the products formed when chloroform (CHCl3) is exposed to light and damp air, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Reactants**:
- Chloroform has the chemical formula CHCl3. It is a haloalkane that can undergo photochemical reactions when exposed to light and moisture in the air.

2. **Identify the Reaction Conditions**:
- The presence of light and damp air (which contains oxygen and water vapor) can lead to the breakdown of chloroform.

3. **Determine the Products**:
- When chloroform is exposed to light and damp air, it can undergo a photochemical reaction that leads to the formation of carbon monoxide (CO) and chlorine gas (Cl2).
- The reaction can be represented as:
\[ 2 \text{CHCl}_3 + \text{O}_2 \xrightarrow{\text{light}} 2 \text{CO} + 2 \text{Cl}_2 + 2 \text{HCl} \]

4. **Identify Other Possible Products**:
- In addition to carbon monoxide and chlorine, other products such as carbon tetrachloride (CCl4) and possibly mustard gas (C4H8Cl2) can also be formed under certain conditions.

5. **Select the Correct Answer**:
- Among the products formed, carbon monoxide (CO) and chlorine gas (Cl2) are significant. Therefore, the correct answer to the question is option B, which corresponds to carbonyl chloride (COCl2).

### Final Answer:
The products formed when chloroform is exposed to light and damp air include carbon monoxide (CO) and chlorine gas (Cl2), making option B (carbonyl chloride) the correct answer.

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