Few pollutants and their effects are listed below . Mark the incorrect match .

Options

A. Phosphate fertilizers in water - eutrophication
B. Hydrogen released in air - Global warming
C. Sewage dispsed in water - Increase in BOD level
D. Carbon dioxide in air - Acid rain

Explanation

To solve the question regarding the incorrect match of pollutants and their effects, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks us to identify which of the listed pollutants is incorrectly matched with its effect or category.

2. **Analyze Option 1**:
- **Pollutants**: Air pollutants
- **Examples**: Oxides of sulfur, nitrogen, and carbon
- **Evaluation**: This is correctly matched. Air pollutants include sulfur dioxide (SO₂), nitrogen oxides (NOₓ), and carbon monoxide (CO), which are indeed harmful to the atmosphere.

3. **Analyze Option 2**:
- **Pollutants**: Particulate pollutants
- **Examples**: Dust, mist, and fumes
- **Evaluation**: This is also correctly matched. Particulate pollutants consist of small particles like dust, mist, and fumes that can affect air quality.

4. **Analyze Option 3**:
- **Pollutants**: Greenhouse gases responsible for global warming
- **Examples**: Methane (CH₄), ozone (O₃), and CFCs (chlorofluorocarbons)
- **Evaluation**: This is correctly matched. All three contribute to the greenhouse effect and global warming.

5. **Analyze Option 4**:
- **Pollutants**: Water-soluble chemical pollutants
- **Examples**: Oxides of nitrogen, carbon, and sodium
- **Evaluation**: This is incorrectly matched. Water-soluble pollutants typically include inorganic compounds like heavy metals and sulfuric acid (H₂SO₄), not the oxides of nitrogen or carbon, which are not primarily classified as water-soluble pollutants.

6. **Conclusion**: Based on the analysis, Option 4 is the incorrect match.

### Final Answer:
The incorrect match is **Option 4: Water soluble chemical pollutants - oxides of nitrogen, carbon, and sodium**.

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