JEE Main 2021 — Environmental Chemistry Question with Solution
From: JEE Main 2021 (Online) 26th February Morning Shift
Question
Choose an option
Show full solutionCorrect option: D
Step-by-step explanation
Ozone is a strong oxidising agent like NO2. In troposphere both O3 and NO2 react with the unburnt hydrocarbons to produce the chemical components of photochemical smog, like formaldehyde (HCHO), acrolein (CH2 = CH - CHO) and PAN or peroxyacetyl nitrate.
Hence, in troposphere, the presence of ozone generates photochemical smog.
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This is a previous-year question from JEE Main 2021, covering the Environmental Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.