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JEE Main 202226 JulyEvening Shift
Exam
JEE Main
Year
2022
Date
26 July
Shift
Evening Shift
Subject
Chemistry
Chapter
Environmental Chemistry

JEE Main 2022 · 26 July · Evening Shift · Chemistry · Environmental Chemistry

Match List I with List II List-I Pollutant List-II Source A...

Match List I with List II

List-I

Pollutant

List-II

Source
A Microorganisms I Strip mining
B Plant nutrients II Domestic sewage
C Toxic heavy metals III Chemical fertilizer
D Sediment IV Chemical factory

Choose the correct answer from the options given below

Options

  1. AA−II,B−III,C−IV,D−IA - II, B - III, C - IV, D - I
  2. BA−II,B−I,C−IV,D−IIIA - II, B - I, C - IV, D - III
  3. CA−I,B−IV,C−II,D−IIIA - I, B - IV, C - II, D - III
  4. DA−I,B−IV,C−III,D−IIA - I, B - IV, C - III, D - II

Correct answer

A. A−II,B−III,C−IV,D−IA - II, B - III, C - IV, D - I

Step-by-step solution

Pollution of water originates from human activities. Through different paths, pollution reaches surface or ground water.

water soluble inorganic chemicals that include heavy metals such as cadmium, mercury, nickel etc constitute an important class of pollutants. All these metals are dangerous to humans because our body cannot excrete them. Over the time, it crosses the tolerance limit. These metals then can damage kidneys, central nervous system, liver etc

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

List-I
Pollutant		 List-II
Source
A Microorganisms II Domestic sewage
B Plant nutrients III Chemical fertilizer
C Toxic heavy metals IV Industries and chemical factories
D Sediment I Erosion of soil by agriculture and strip mining
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