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Environmental Chemistry
Question
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Which one of  the following statements regarding photochemical smog is not correct?

  • Carbon monoxide does not play any role in photochemical smog formation

  • Photochemical smog is an oxidising agent in character

  • Photochemical smog is formed through photochemical reaction involving solar energy

  • Photochemical smog does not cause irritation in eyes and throat. 

Answer

D.

Photochemical smog does not cause irritation in eyes and throat. 

Photochemical smog is formed in warm and sunny climate during day time by the action of sunlight on primary pollutants. It contains nitrogen oxides, ozone, PAN etc. , which are oxidising in nature. so, photochemical smog is an oxidising agent in character. it causes irritation in eyes and throat. 

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