JEE Main 2021 — Environmental Chemistry Question with Solution
From: JEE Main 2021 (Online) 31st August Morning Shift
Question
BOD values (in ppm) for clean water (A) and polluted water (B) are expected respectively :
Choose an option
Show full solutionCorrect option: C
Correct answer
CA < 5, B > 17
Step-by-step explanation
BOD values of clean water (A) is less than 5 ppm
So, A < 5
BOD values of polluted water (B) is greater than 17 ppm
So, B > 17
So, Ans. is (c)
So, A < 5
BOD values of polluted water (B) is greater than 17 ppm
So, B > 17
So, Ans. is (c)
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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.