Which one of following is produced during the formation of photochemical smog?
- AHydrocarbons
- BNitrogen Oxides
- COzoneCorrect
- DMethane
Explanation
The correct answer is C because Ozone is a secondary pollutant produced through chemical reactions in the atmosphere.
Photochemical smog is formed when primary pollutants like Nitrogen Oxides and volatile Hydrocarbons react in the presence of sunlight. While Nitrogen Oxides and Hydrocarbons are the ingredients or precursors required to start the reaction, Ozone is the actual product generated during the process.
Therefore, although Nitrogen Oxides and Hydrocarbons are involved in the formation of smog, they are the reactants, whereas Ozone is the characteristic substance produced as a result of the photochemical reaction.

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