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Environmental Chemistry PYQs - Last 5 Years

JEE Main / Chemistry / Inorganic Chemistry / 86 recent questions

ChemistryInorganic Chemistry2019-2023
All Environmental Chemistry PYQsLast 10 YearsCreate chapter test

Practice 86 JEE Main Chemistry questions from Environmental Chemistry. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

86
PYQs on Page
Chemistry / Inorganic Chemistry
2019-2023
Year Range
Based on indexed question metadata
86
Last 5 Years
2019-2023
86
Last 10 Years
2014-2023

Recent Year Trend

2019
2020
2021
2022
2023Latest year
201922 max PYQs/year2023

Question Types

86PYQs
MCQ100%

Difficulty Mix

#1 Easy84
#2 Medium2
86 in last 5 years86 in last 10 years

Last 5 Years Environmental Chemistry Questions

Showing 36 of 86 filtered questions.

1Environmental Chemistry
Which one of the following gases is reported to retard photosynthesis?
MCQ+4 / -12021
2Environmental Chemistry
Water sample is called cleanest on the basis of which one of the BOD values given below :
MCQ+4 / -12021
3Environmental Chemistry
The statements that are TRUE :(A) Methane leads to both global warming and photochemical smog(B) Methane is generated from paddy fields(C) Methane is a stronger global warming gas than CO2(D) Methane is a part of reducing smogChoose the mos...
MCQ+4 / -12021
4Environmental Chemistry
Given below are two statements :Statement I : Non-biodegradable wastes are generated by the thermal power plants.Statement II : Bio-degradable detergents leads to eutrophication.In the light of the above statements, choose the most appropri...
MCQ+4 / -12021
5Environmental Chemistry
Reducing smog is a mixture of :
MCQ+4 / -12021
6Environmental Chemistry
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...
MCQ+4 / -12021
7Environmental Chemistry
The type of pollution that gets increased during the day time and in the presence of O3 is :
MCQ+4 / -12021
8Environmental Chemistry
The green house gas/es is (are) :(A) Carbon dioxide(B) Oxygen(C) Water vapour(D) MethaneChoose the most appropriate answer from the options given below :
MCQ+4 / -12021
9Environmental Chemistry
Biochemical Oxygen Demand (BOD) is the
amount of oxygen required (in ppm) :
MCQ+4 / -12020
10Environmental Chemistry
Among the gases (a) – (e), the gases that cause greenhouse effect are :
(a) CO2
(b) H2O
(c) CFCs
(d) O2
(e) O3
MCQ+4 / -12020
11Environmental Chemistry
The presence of soluble fluoride ion upto
1 ppm concentration in drinking water, is :
MCQ+4 / -12020
12Environmental Chemistry
The condition that indicates a polluted environment
is :
MCQ+4 / -12020
13Environmental Chemistry
The processes of calcination and roasting in
metallurgical industries, respectively, can Iead
to :
MCQ+4 / -12020
14Environmental Chemistry
Thermal power plants can lead to :
MCQ+4 / -12020
15Environmental Chemistry
The incorrect statement(s) among (a) – (d)
regarding acid rain is (are) :
(a) It can corrode water pipes.
(b) It can damage structures made up of stone.
(c) It cannot cause respiratory ailments in animals.
(d) It is not harmful for trees
MCQ+4 / -12020
16Environmental Chemistry
The statement that is not true about ozone is :
MCQ+4 / -12020
17Environmental Chemistry
A water sample has ppm level concentration of the following metals : Fe = 0.2; Mn = 5.0; Cu = 3.0; Zn = 5.0. The metal that makes the water sample unsuitable for drinking is :
MCQ+4 / -12019
18Environmental Chemistry
Which of the following conditions in drinking water causes methemoglobinemia?
MCQ+4 / -12019
19Environmental Chemistry
Excessive release of CO2 into the atomosphere
results in :
MCQ+4 / -12019
20Environmental Chemistry
The layer of atmosphere between 10 km to
50 km above the sea level is called as :
MCQ+4 / -12019
21Environmental Chemistry
Assertion : Ozone is destroyed by CFCs in the upper stratosphere.
Reason : Ozone holes increase the amount of UV radiation the earth.
MCQ+4 / -12019
22Environmental Chemistry
Which is wrong with respect to our responsiblity as a human being to protect our environment?
MCQ+4 / -12019
23Environmental Chemistry
The maximum prescribed concentration of
copper in drinking water is :
MCQ+4 / -12019
24Environmental Chemistry
The molecule that has minimum /no role in the formation of photochemical smog, is :
MCQ+4 / -12019
25Environmental Chemistry
Water samples with BOD values of 4 ppm and 18 ppm, respectively are :
MCQ+4 / -12019
26Environmental Chemistry
The compound that is NOT a common component of photochemical smog is :
MCQ+4 / -12019
27Environmental Chemistry
The correct set of species responsible for the photochemical smog is :
MCQ+4 / -12019
28Environmental Chemistry
The primary pollutant that leads to photochemical smog is :
MCQ+4 / -12019
29Environmental Chemistry
Peroxyacetyl nitrate (PAN), an eye irritant is produced by :
MCQ+4 / -12019
30Environmental Chemistry
The concentration of dissolved oxygen (DO) in cold water can go upto :
MCQ+4 / -12019
31Environmental Chemistry
The higher concentration of which gas in air can cause stiffness of flower buds?
MCQ+4 / -12019
32Environmental Chemistry
Taj Mahal is being slowly disfigured and discoloured. This is primarily due to :
MCQ+4 / -12019
33Environmental Chemistry
Water filled in two glasses A and B have BOD values of 10 and 20, respectively. The correct statement regarding them, is :
MCQ+4 / -12019
34Environmental Chemistry
The reaction that is NOT involved in the ozone layer depletion mechanism in the stratosphere is :
MCQ+4 / -12019
35Environmental Chemistry
The regions of the atmosphere, where clouds form and where we live, respectively, are :
MCQ+4 / -12019
36Environmental Chemistry
Air pollution that occurs in sunlight is :
MCQ+4 / -12019