The reaction of chlorine with CO in the presence of sunlight gives :

Options

A. `H_(2)Cl_(2)O_(2)`
B. `HOCl `
C. `CO_(2)Cl_(2) `
D. `COCl_(2)`

Explanation

To solve the question regarding the reaction of chlorine with carbon monoxide in the presence of sunlight, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**: The reactants in this reaction are carbon monoxide (CO) and chlorine (Cl2).

2. **Understand the Conditions**: The reaction takes place in the presence of sunlight, which indicates that it may involve a photochemical reaction.

3. **Write the Reaction**: When carbon monoxide reacts with chlorine, the products formed are phosgene (COCl2). The chemical equation can be written as:
\[ \text{CO (g)} + \text{Cl}_2 \text{(g)} \xrightarrow{\text{sunlight}} \text{COCl}_2 \text{(g)} \]

4. **Identify the Product**: The product of this reaction is phosgene, which is a toxic gas with the chemical formula COCl2.

5. **Analyze the Options**: Now, we need to check the provided options to find the correct product:
- Option 1: H2Cl2O2 (Incorrect)
- Option 2: HOCl (Incorrect)
- Option 3: CO2 (Incorrect)
- Option 4: COCl2 (Correct)

6. **Conclusion**: The correct answer is COCl2, which corresponds to phosgene.

### Final Answer:
The reaction of chlorine with carbon monoxide in the presence of sunlight gives phosgene (COCl2).

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