Environmental Chemistry PYQs - Last 10 Years
JEE Main / Chemistry / Inorganic Chemistry / 94 recent questions
ChemistryInorganic Chemistry2014-2023
Practice 94 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.
94
PYQs on Page
Chemistry / Inorganic Chemistry
2016-2023
Year Range
Based on indexed question metadata
86
Last 5 Years
2019-2023
94
Last 10 Years
2014-2023
Recent Year Trend
2018
2019
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2021
2022
2023Latest year
201822 max PYQs/year2023
Question Types
94PYQs
MCQ100%
Difficulty Mix
#1 Easy92
#2 Medium2
86 in last 5 years94 in last 10 years
Last 10 Years Environmental Chemistry Questions
Showing 50 of 94 filtered questions.
1Environmental Chemistry
Match List I with List II:
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overflow:hidden;padding:10px 5px;word-break:normal;}...
MCQ+4 / -12023
2Environmental Chemistry
Which of these reactions is not a part of breakdown of ozone in stratosphere?
MCQ+4 / -12023
3Environmental Chemistry
The possibility of photochemical smog formation is more at :
MCQ+4 / -12023
4Environmental Chemistry
Identify X, Y and Z in the following reaction. (Equation not balanced)
MCQ+4 / -12023
5Environmental Chemistry
Formation of photochemical smog involves the following reaction in which \(\mathrm{A}, \mathrm{B}\) and \(\mathrm{C}\) are respectively.
$$
\begin{aligned}
& \text { i. } \mathrm{NO}_{2} \stackrel{\mathrm{h} v}{\longrightarrow} \mathrm{A}+\...
$$
\begin{aligned}
& \text { i. } \mathrm{NO}_{2} \stackrel{\mathrm{h} v}{\longrightarrow} \mathrm{A}+\...
MCQ+4 / -12023
6Environmental Chemistry
The water quality of a pond was analyzed and its BOD was found to be 4. The pond has :
MCQ+4 / -12023
7Environmental Chemistry
Correct statement about smog is :
MCQ+4 / -12023
8Environmental Chemistry
The concentration of dissolved Oxygen in water for growth of fish should be more than \(\mathrm{\underline X }\) ppm and Biochemical Oxygen Demand in clean water should be less than \(\mathrm{\underline Y }\) ppm. X and Y in ppm are, respec...
MCQ+4 / -12023
9Environmental Chemistry
Some reactions of NO\(_2\) relevant to photochemical smog formation are
Identify A, B, X and Y :
Identify A, B, X and Y :
MCQ+4 / -12023
10Environmental Chemistry
Which of the following is true about freons?
MCQ+4 / -12023
11Environmental Chemistry
Correct statement is :
MCQ+4 / -12023
12Environmental Chemistry
How can photochemical smog be controlled?
MCQ+4 / -12023
13Environmental Chemistry
The industrial activity held least responsible for global warming is :
MCQ+4 / -12023
14Environmental Chemistry
The possibility of photochemical smog formation will be minimum at :
MCQ+4 / -12023
15Environmental Chemistry
The radical which mainly causes ozone depletion in the presence of UV radiations is :
MCQ+4 / -12023
16Environmental Chemistry
Which of the following are the Green house gases?
A. Water vapour
B. Ozone
C. I\(_2\)
D. Molecular hydrogen
Choose the most appropriate answer from the options given below :
A. Water vapour
B. Ozone
C. I\(_2\)
D. Molecular hydrogen
Choose the most appropriate answer from the options given below :
MCQ+4 / -12023
17Environmental Chemistry
Match List I with List II
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...
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overflow:hidden;padding:10px 5px;word-break:normal;}
...
MCQ+4 / -12023
18Environmental Chemistry
Given below are two statements:
Statement I : If BOD is 4 ppm and dissolved oxygen is 8 ppm, then it is a good quality water.
Statement II : If the concentration of zinc and nitrate salts are \(5 ~\mathrm{ppm}\) each, then it can be a good ...
Statement I : If BOD is 4 ppm and dissolved oxygen is 8 ppm, then it is a good quality water.
Statement II : If the concentration of zinc and nitrate salts are \(5 ~\mathrm{ppm}\) each, then it can be a good ...
MCQ+4 / -12023
19Environmental Chemistry
Which of the following compounds is an example of Freon?
MCQ+4 / -12023
20Environmental Chemistry
Match List I with List II
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overflow:hidden;padding:10px 5px;word-break:normal;}
...
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overflow:hidden;padding:10px 5px;word-break:normal;}
...
MCQ+4 / -12023
21Environmental Chemistry
The delicate balance of \(\mathrm{CO}_{2}\) and \(\mathrm{O}_{2}\) is NOT disturbed by :
MCQ+4 / -12023
22Environmental Chemistry
The acid that is believed to be mainly responsible for the damage of Taj Mahal is :
MCQ+4 / -12022
23Environmental Chemistry
Which among the following pairs has only herbicides?
MCQ+4 / -12022
24Environmental Chemistry
Correct statement about photo-chemical smog is :
MCQ+4 / -12022
25Environmental Chemistry
Given below are two statements:
Statement I : In polluted water values of both dissolved oxygen and \(\mathrm{BOD}\) are very low.
Statement II : Eutrophication results in decrease in the amount of dissolved oxygen.
In the light of the abov...
Statement I : In polluted water values of both dissolved oxygen and \(\mathrm{BOD}\) are very low.
Statement II : Eutrophication results in decrease in the amount of dissolved oxygen.
In the light of the abov...
MCQ+4 / -12022
26Environmental Chemistry
Given below are two Statements:
Statement I : Classical smog occurs in cool humid climate. It is a reducing mixture of smoke, fog and sulphur dioxide.
Statement II : Photochemical smog has components, ozone, nitric oxide, acrolein, formalde...
Statement I : Classical smog occurs in cool humid climate. It is a reducing mixture of smoke, fog and sulphur dioxide.
Statement II : Photochemical smog has components, ozone, nitric oxide, acrolein, formalde...
MCQ+4 / -12022
27Environmental Chemistry
On the surface of polar stratospheric clouds, hydrolysis of chlorine nitrite gives A and B while its reaction with its reaction with HCl produces B and C. A, B and C are, respectively :
MCQ+4 / -12022
28Environmental Chemistry
Match List I with List II.
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overflow:hidden;padding:10px 5px;word-break:normal;}...
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.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}...
MCQ+4 / -12022
29Environmental Chemistry
Given below are two statements:
Statement I : The non bio-degradable fly ash and slag from steel industry can be used by cement industry.
Statement II : The fuel obtained from plastic waste is lead free.
In the light of the above statements...
Statement I : The non bio-degradable fly ash and slag from steel industry can be used by cement industry.
Statement II : The fuel obtained from plastic waste is lead free.
In the light of the above statements...
MCQ+4 / -12022
30Environmental Chemistry
Polar stratospheric clouds facilitate the formation of :
MCQ+4 / -12022
31Environmental Chemistry
The measured BOD values for four different water samples (A-D) are as follows: A = 3 ppm; B = 18 ppm; C = 21 ppm; D = 4 ppm. The water samples which can be called as highly polluted with organic wastes, are :
MCQ+4 / -12022
32Environmental Chemistry
Match List I with List II.
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overflow:hidden;padding:10px 5px;word-break:normal;}...
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overflow:hidden;padding:10px 5px;word-break:normal;}...
MCQ+4 / -12022
33Environmental Chemistry
The eutrophication of water body results in :
MCQ+4 / -12022
34Environmental Chemistry
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Polluted water may have a value of BOD of the order of 17 ppm.
Reason R : BOD is a measure of oxygen required to oxidise bo...
Assertion A : Polluted water may have a value of BOD of the order of 17 ppm.
Reason R : BOD is a measure of oxygen required to oxidise bo...
MCQ+4 / -12022
35Environmental Chemistry
The photochemical smog does not generally contain :
MCQ+4 / -12022
36Environmental Chemistry
Some gases are responsible for heating of atmosphere (green house effect). Identify from the following the gaseous species which does not cause it.
MCQ+4 / -12022
37Environmental Chemistry
BOD values (in ppm) for clean water (A) and polluted water (B) are expected respectively :
MCQ+4 / -12021
38Environmental Chemistry
The deposition of X and Y on ground surfaces is referred as wet and dry depositions, respectively. X and Y are :
MCQ+4 / -12021
39Environmental Chemistry
Which one of the following statements is NOT correct?
MCQ+4 / -12021
40Environmental Chemistry
The gas 'A' is having very low reactivity reaches to stratosphere. It is non-toxic and non-flammable but dissociated by UV-radiations in stratosphere. The intermediates formed initially from the gas 'A' are :
MCQ+4 / -12021
41Environmental Chemistry
Which one of the following is used to remove most of plutonium from spent nuclear fuel?
MCQ+4 / -12021
42Environmental Chemistry
In stratosphere most of the ozone formation is assisted by :
MCQ+4 / -12021
43Environmental Chemistry
The presence of ozone in troposphere :
MCQ+4 / -12021
44Environmental Chemistry
The conversion of hydroxyapatite occurs due to presence of F\(-\) ions in water. The correct formula of hydroxyapatite is :
MCQ+4 / -12021
45Environmental Chemistry
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Photochemical smog causes cracking of rubber.Reason (R) : Presence of ozone, nitric oxide, acrolein, formaldehyde and...
MCQ+4 / -12021
46Environmental Chemistry
Given below are two statements :Statement I : Chlorofluoro breakdown by radiation in the visible energy region and release chlorine gas in the atmosphere which then reacts with stratospheric ozone.Statement II : Atmospheric ozone reacts wit...
MCQ+4 / -12021
47Environmental Chemistry
Given below are two statements :Statement I : An allotrope of oxygen is an important intermediate in the formation of reducing smog.Statement II : Gases such as oxides of nitrogen and sulphur present in troposphere contribute to the formati...
MCQ+4 / -12021
48Environmental Chemistry
Given below are two statements :Statement I : The pH of rain water is normally 5.6.Statement II : If the pH of rain water drops below 5.6, it is called acid rain.In the light of the above statements, choose the correct answer from the optio...
MCQ+4 / -12021
49Environmental Chemistry
The gas released during anaerobic degradation of vegetation may lead to :
MCQ+4 / -12021
50Environmental Chemistry
Given below are two statements :Statement I : The value of the parameter "Biochemical Oxygen Demand (BOD)" is important for survival of aquatic life.Statement II : The optimum value of BOD is 6.5 ppm.In the light of the above statements, ch...
MCQ+4 / -12021