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Photochemical smog consists of excessive amount of X , in addition to aldehydes, ketones, peroxy acetyl nitrile ( PAN ) . X is:

Options

  1. AC H 4
  2. BC O 2
  3. CO 3
  4. DC O

Correct answer

C. O 3

Step-by-step solution

Photochemical smog is formed on the chemical reaction of sunlight, nitrogen oxides and volatile organic compounds in the atmosphere. N O 2 g → h v N O g + O g Oxygen atom (nascent) is very reactive and combines with O 2   in air to produce ozone. O g + O 2 g → O 3 g

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