JEE Main 2023ChemistryEnvironmental ChemistryEasyMCQ

JEE Main 2023 — Environmental Chemistry Question with Solution

JEE Main 2023 (30 Jan Shift 2)

Question

The water quality of a pond was analysed and its BOD was found to be 4. The pond has

Choose an option

Show full solutionCorrect option: C
Correct answer
CVery clean water

Step-by-step explanation

The amount of BOD in the water is a measure of the amount of organic material in the water, in terms of how much oxygen will be required to break it down biologically.

Clean water has BOD value of less than 5 ppm whereas polluted water has a BOD value of 17 ppm or more.

So, the pond has very clean water.

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About this question

This is a previous-year question from JEE Main 2023, 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.