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Question: Answered & Verified by Expert
Photochemical smog occurs in warm, dry and sunny climate. One of the following is not amongst the components of photochemical smog, identify it.
ChemistryEnvironmental Chemistry
Options:
  • A
    $\mathrm{NO}_2$
  • B
    $\mathrm{O}_3$
  • C
    $\mathrm{SO}_2$
  • D
    Unsaturated hydrocarbon
Solution:
2330 Upvotes Verified Answer
The correct answer is:
$\mathrm{SO}_2$
The smog which is formed in presence of sunlight is called photochemical smog. The main components of the photochemical smog results from the action of sunlight on unsaturated hydrocarbons and nitrogen oxides produced by automobiles and factories.

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