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NTA Abhyas JEE Main2020ChemistryEnvironmental ChemistryPractice

Photochemical smog consists of excessive amount of X, in addition to aldehydes, ketones, peroxyacetyl nitrates (PAN) and so forth X is

Options

  1. AC H 4
  2. BC O
  3. CC O 2
  4. DO 3

Correct answer

D. O 3

Step-by-step solution

Chemical pollutants in photochemical smog are nitrogen oxides (NO and N O 2 ), volatile organic compounds, ozone O 3 , peroxyacetyl nitrates. In the presence of sunlight of the following reactions take place N O 2 → h v N O + O O + O 2 → O 3 O 3 + N O → N O 2 + O 2 Hence, it consists of excessive amount of ozone melecules.

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