Which of the following pullutant can form complex with haemoglobin of blood?

Options

A. `CF_(2)Cl_(2)`
B. `CO`
C. `SO_(3)`
D. `CHCl_(3)`

Explanation

To solve the question "Which of the following pollutants can form a complex with hemoglobin of blood?", we will analyze each option provided and determine which one is known to interact with hemoglobin.

### Step-by-Step Solution:

1. **Understanding Hemoglobin and Pollutants**:
- Hemoglobin is a protein in red blood cells responsible for transporting oxygen. Certain pollutants can bind to hemoglobin, affecting its ability to carry oxygen.

2. **Analyzing the Options**:
- **Option A: Chlorofluorocarbon (CFC)**:
- CFCs are primarily used in refrigeration and aerosol propellants. They do not interact with hemoglobin.
- **Option B: Carbon Monoxide (CO)**:
- Carbon monoxide is a colorless, odorless gas produced from incomplete combustion of fossil fuels. It can bind to hemoglobin to form carboxyhemoglobin, which inhibits the transport of oxygen.
- **Option C: Sulfur Trioxide (SO3)**:
- SO3 is a gas that can form sulfuric acid in the atmosphere but does not interact with hemoglobin.
- **Option D: Chloroform**:
- Chloroform is an organic solvent that can have toxic effects but does not form a complex with hemoglobin.

3. **Conclusion**:
- The only pollutant from the options that can form a complex with hemoglobin is **Carbon Monoxide (Option B)**. It binds to hemoglobin more effectively than oxygen, leading to reduced oxygen transport in the blood.

### Final Answer:
**Option B: Carbon Monoxide (CO)**

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