Benzpyrene is ingredient of

Options

A. Wood smoke and tobacco smoke
B. Automobile exhausts
C. Coal tar
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding Benzopyrene**: Benzopyrene is a polycyclic aromatic hydrocarbon (PAH). This means it consists of multiple fused aromatic rings and is primarily composed of carbon and hydrogen.

2. **Chemical Formula**: The chemical formula for Benzopyrene is C20H12, indicating it contains 20 carbon atoms and 12 hydrogen atoms.

3. **Sources of Benzopyrene**: Benzopyrene is produced from various sources, primarily through incomplete combustion processes. Key sources include:
- Incomplete combustion of fossil fuels such as petrol and diesel.
- Incomplete combustion of organic materials, which can include various types of biomass.
- Coal tar, which is a byproduct of coal carbonization.
- Smoke from wood burning and tobacco smoking.

4. **Analyzing the Options**:
- **Option A: Wood smoke and tobacco smoke** - Correct, as both sources can produce Benzopyrene.
- **Option B: Automobile exhaust** - Correct, as it includes emissions from petrol and diesel combustion, which can produce Benzopyrene.
- **Option C: Coal tar** - Correct, as coal tar contains Benzopyrene.
- **Option D: All of the above** - Since all the previous options are correct, this option is also correct.

5. **Conclusion**: The correct answer to the question "Benzopyrene is an ingredient of?" is **All of the above**.

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