The yellowish colour of photochemical smog is due to the presence of:
Correct answer: A. Nitrogen dioxide
- A. Nitrogen dioxide
- B. Dinitrogen trioxide
- C. Nitrous oxide
- D. Nitric oxide
Explanation
Explanation:The yellowish color of photochemical smog is primarily due to the presence of nitrogen dioxide (NO2), which is a brownish-yellow gas. Dinitrogen trioxide (N2O3) and nitric oxide (NO) are also nitrogen oxides, but they donot contribute significantly to the color of photochemical smog. Nitrous oxide (N2O) is a different compound that is not typically present in photochemical smog.
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