Carcinogen present in coal tar is

Options

A. Nitroso dimethylene
B. 3,4-benzopyrine
C. 2-naphWamine
D. 4-amino biphenyl

Answer

**Step-by-Step Solution:**

1. **Understanding Carcinogens**: Carcinogens are substances that can lead to cancer. They can be found in various forms, including chemical compounds.

2. **Identifying the Source**: Coal tar is a byproduct of the carbonization of coal, which is used in various industrial processes. It contains numerous organic compounds.

3. **Recognizing the Specific Carcinogen**: One of the most well-known carcinogens found in coal tar is Benzopyrene. This compound is released when organic materials, such as coal, are burned.

4. **Understanding Isomers**: Benzopyrene has isomers, one of which is 3,4-Benzopyrene. Isomers are compounds that have the same molecular formula but different structural arrangements.

5. **Conclusion**: Therefore, the carcinogen present in coal tar is 3,4-Benzopyrene, which is an isomer of Benzopyrene.

**Final Answer**: The carcinogen present in coal tar is 3,4-Benzopyrene.

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