Chemicals responsible for the Bhopal gas tragedy were

Options

A. `CO_(2) " and " CH_(4)`
B. phosgene and methyl isocyanate
C. polychlorinated biphenyls
D. dichloro diphenyl trichloroethane.

Answer

**Step-by-Step Solution:**

1. **Introduction to the Bhopal Gas Tragedy**:
- The Bhopal Gas Tragedy occurred in Bhopal, India, in December 1984. It is recognized as one of the worst industrial disasters in history.

2. **Identification of the Chemicals Involved**:
- The primary chemicals responsible for the tragedy were **methyl isocyanate (MIC)** and **phosgene**. These chemicals were released from a pesticide plant during the incident.

3. **Details of the Incident**:
- The gas leak happened during the night of December 2nd to 3rd, 1984, leading to the exposure of thousands of residents to toxic gases.

4. **Consequences of the Tragedy**:
- The leakage resulted in thousands of deaths and long-term health effects for many survivors, highlighting the severe impact of industrial accidents.

5. **Conclusion**:
- Based on the information, the correct answer to the question regarding the chemicals responsible for the Bhopal gas tragedy is **methyl isocyanate and phosgene**.

**Final Answer**: The chemicals responsible for the Bhopal gas tragedy were methyl isocyanate and phosgene.

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