To determine which of the options is not required for the formation of Peroxyacetyl Nitrate (PAN) in the atmosphere, we should review the components involved in its formation process.

1. **Sulphur Dioxide (SO₂):** This compound is primarily related to the formation of acid rain and does not play a direct role in PAN formation.

2. **Nitrogen Dioxide (NO₂):** This gas is essential in the photochemical reactions that lead to the formation of PAN. It serves as a precursor in the process.

3. **Sunlight:** Required for photochemical reactions; it catalyzes the formation of PAN through reactions with nitrogen compounds.

4. **Volatile Organic Compounds (VOCs):** These are critical reactants in the formation of PAN. They react with NO₂ in the presence of sunlight.

### Conclusion
Based on the above analysis, the option that is not required for PAN formation in the atmosphere is: **a. Sulphur Dioxide.**

Question

To determine which of the options is not required for the formation of Peroxyacetyl Nitrate (PAN) in the atmosphere, we should review the components involved in its formation process.

1. **Sulphur Dioxide (SO₂):** This compound is primarily related to the formation of acid rain and does not play a direct role in PAN formation.
   
2. **Nitrogen Dioxide (NO₂):** This gas is essential in the photochemical reactions that lead to the formation of PAN. It serves as a precursor in the process.

3. **Sunlight:** Required for photochemical reactions; it catalyzes the formation of PAN through reactions with nitrogen compounds.

4. **Volatile Organic Compounds (VOCs):** These are critical reactants in the formation of PAN. They react with NO₂ in the presence of sunlight.

### Conclusion
Based on the above analysis, the option that is not required for PAN formation in the atmosphere is: **a. Sulphur Dioxide.**

Knowee AI · Accepted Answer

To determine which of the options is not required for the formation of Peroxyacetyl Nitrate (PAN) in the atmosphere, we should review the components involved in its formation process.

1. **Sulphur Dioxide (SO₂):** This compound is primarily related to the formation of acid rain and does not play a direct role in PAN formation.
   
2. **Nitrogen Dioxide (NO₂):** This gas is essential in the photochemical reactions that lead to the formation of PAN. It serves as a precursor in the process.

3. **Sunlight:** Required for photochemical reactions; it catalyzes the formation of PAN through reactions with nitrogen compounds.

4. **Volatile Organic Compounds (VOCs):** These are critical reactants in the formation of PAN. They react with NO₂ in the presence of sunlight.

### Conclusion
Based on the above analysis, the option that is not required for PAN formation in the atmosphere is: **a. Sulphur Dioxide.**

Which of the following is not require for PAN formation in atmosphere.a.Sulphur Dioxideb.Nitrogen dioxidec.Sunlightd.Volatile Organic Compounds (VOCs)

Question

Which of the following is not require for PAN formation in atmosphere.

Solution

Conclusion

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