Photochemical smog formation begins with the emission of primary pollutants (NOx and VOCs). Sunlight drives reactions, leading to the formation of ozone (O₃). The ozone and other intermediates then react further to form secondary pollutants like Peroxy Acyl Nitrates (PANs). The provided sequence reflects this general progression.
Sort the following steps in the correct order of photochemical smog production : A. Emission of NOₓ and VOCs. B. Ozone production due to the reaction between NOₓ and VOCs. C. Ozone reacts with other pollutants and forms NO₂ and O₂. D. Peroxy Acyl Nitrate (PAN) is produced by the reaction between NO₂ and hydrocarbons. Choose the correct order :
Asked in TSPSC Group 1 Prelims 2024 · Topic: Pollution (Air Pollution: Types, sources, primary & secondary pollutants, smog, acid rain, effects, control technologies & policies.)
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