According to Oparin and Haldane, the primitive atmosphere on earth was having the following mixture of gases

Options

A. `H_2 , NH_3 , CH_4 , CO_2`
B. `CH_4 , NH_3 , H_2O,O_2`
C. `CH_4 , H_2 , NH_3 , H_2O`
D. `NH_3 , CH_4 , H_2 , O2`

Answer

**Step-by-Step Solution:**

1. **Understanding Oparin and Haldane's Hypothesis**: Oparin and Haldane proposed that the primitive atmosphere of Earth was composed of various gases that facilitated the formation of organic compounds, which eventually led to the origin of life.

2. **Identifying the Gases**: According to their hypothesis, the key gases present in the primitive atmosphere included:
- Methane (CH₄)
- Ammonia (NH₃)
- Hydrogen (H₂)
- Water vapor (H₂O)

3. **Exclusion of Other Gases**: It is important to note that gases like Carbon Dioxide (CO₂) and Oxygen (O₂) were not part of the reducing atmosphere that Oparin and Haldane described. The presence of these gases would not support the formation of organic compounds as they would lead to oxidation rather than reduction.

4. **Conclusion**: The correct mixture of gases in the primitive atmosphere, according to Oparin and Haldane, is Methane, Hydrogen, Ammonia, and Water vapor.

**Final Answer**: The primitive atmosphere on Earth, according to Oparin and Haldane, consisted of Methane, Hydrogen, Ammonia, and Water vapor.

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