Smog is the fog containing smoke. Smog is of two types depending upon the type of pollutants; classical smog and photochemical smog.
Classical smog, also known as London smog or Sulphurous smog, is formed when there is high concentration of sulphur dioxide and particulate matter produced due to combustion of fuels. It occurs in cold and humid climate and has reducing nature.
Photochemical smog, also known as Los Angeles smog, is formed when sunlight acts on the oxides of nitrogen and hydrocarbons produced from factories or by automobiles. It occurs in warm and dry climate and has oxidising nature.
So, the correct answer is 'Classical smog'.
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Similar Questions
Q1
What is smog? How is
classical smog different from photochemical smog?
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Q2
Photochemical smog is _____ in characer while classical smog is _____ in character.
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Q3
Photochemical smog is ____ in character while classical smog is _____ in character.
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Q4
Photochemical smog is ____________ in character, while classical smog is ________ in character.
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Q5
Assertion :Classical smog is oxidising smog whereas photochemical smog is reducing smog. Reason: Classical smog occurs in warm, dru and sunny climate whereas photochemical smog occurs in cool humid climate.