JEE Main 2021ChemistryEnvironmental ChemistryMediumMCQ

JEE Main 2021 — Environmental Chemistry Question with Solution

JEE Main 2021 (17 Mar Shift 2)

Question

Which of the following statement(s) is (are)
incorrect reason for eutrophication?
(A) excess usage of fertilisers
(B) excess usage of detergents
(C) dense plant population in water bodies
(D) lack of nutrients in water bodies that prevent plant growth

Choose the most appropriate answer from the options given below :

Choose an option

Show full solutionCorrect option: D
Correct answer
D(D) only

Step-by-step explanation

The process in which nutrient enriched water bodies support a dense plant population which kills animal life by depriving it of oxygen and results in subsequent loss of biodiversity is known as eutrophication.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Environmental Chemistry chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

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.