JEE Main 2021ChemistryEnvironmental ChemistryEasyMCQ

JEE Main 2021Environmental Chemistry Question with Solution

JEE Main 2021 (01 Sep Shift 2)

Question

Water sample is called cleanest on the basis of which one of the BOD values given below :

Choose an option

Show full solutionCorrect option: C
Correct answer
C3 ppm

Step-by-step explanation

Clean water would have BOD value of less than 5 ppm whereas highly polluted water could have a BOD value of 17 ppm or more.

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About this question

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.