JEE Main Environmental Chemistry Practice Questions With Solutions

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JEE Main Environmental Chemistry Practice Questions with Solutions

Environmental Chemistry is the study of chemical processes occurring in nature and their effects on the environment. It is one of the most interesting and scoring topics in the Chemistry section of the JEE Main entrance exam. The JEE Main Environmental Chemistry Practice Questions with Solutions contain many questions and solutions from this topic for students to practice and gain thorough knowledge of environmental chemistry. Through these practice tests, students can examine their performance and focus on weaker sections. You may expect at least 1 or 2 questions from this chapter in the JEE Main exam’s chemistry section. Attempting the practice tests will help students to learn various environmental processes, names of pollutants, ways to purify the environment, etc. JEE Main aspirants can take the environmental chemistry practice test at their own time and convenience.

Some of the important topics asked in the JEE Main entrance exam from the surface chemistry chapter includes Atmospheric Pollution, Soil Pollution, Water Pollution, Waste Management & Recycling, Greenhouse Effect & Global Warming, Ozone Depletion, and Simple Chemistry in Environment. Candidates preparing themselves for the JEE Main entrance exam must practice questions from all these topics mentioned above to be able to solve all questions from environmental chemistry easily. The types of questions asked include multiple-choice types and assertion-reason types. The JEE Main Environmental Chemistry practice test generally consists of 10 to 15 multiple-choice questions from all the important topics of this chapter. It will also have the solutions for each question for the reference of students. By attempting the JEE Main Environmental Chemistry Practice Questions with Solutions often, will help JEE Main aspirant to remember all the facts and knowledge of environmental chemistry precisely. Practice tests will help them assess their preparation for the exam, and they will be able to concentrate on topics that need to be studied more. These practice tests also help students to boost their time management abilities and achieve high scores in the exam.

JEE Main Chemistry Environmental Chemistry Practice Questions

Mathematics Physics

Question 1.

The possibility of photochemical smog formation will be minimum at :

Mumbai in May

Kolkata in October

New-Delhi in August (Summer)

Srinagar, Jammu and Kashmir in January

Question 2.

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 and D only

A and B only

B and C only

C and D only

Question 3.

The radical which mainly causes ozone depletion in the presence of UV radiations is :

{NO}^{\cdot}

{CH}_{3}^{\cdot}

\dot{Cl}

\dot{O} H

Question 4.

Match List I with List II

	LIST I		LIST II
A.	Nitrogen oxides in air	I.	Eutrophication
B.	Methane in air	II.	pH of rain water becomes 5.6
C.	Carbon dioxide	III.	Global warming
D.	Phosphate fertilisers in water	IV.	Acid rain

Choose the correct answer from the options given below :

A-II, B-III, C-I, D-IV

A-I, B-II, C-III, D-IV

A-IV, B-II, C-III, D-I

A-IV, B-III, C-II, D-I

Question 5.

Which of the following compounds is an example of Freon?

C_{2} H_{2} F_{2}

C_{2} {HF}_{3}

C_{2} F_{4}

C_{2} {Cl}_{2} F_{2}

Question 6.

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 $5 ppm$ each, then it can be a good quality water.

In the light of the above statements, choose the most appropriate answer from the options given below :

Statement I is incorrect but Statement II is correct

Both the statements I and II are incorrect

Both the statements I and II are correct

Statement I is correct but Statement II is incorrect

Question 7.

The delicate balance of ${CO}_{2}$ and $O_{2}$ is NOT disturbed by :

Burning of Coal

Burning of petroleum

Respiration

Deforestation

Question 8.

Match List I with List II

	List I Industry		List II Waste Generated
(A)	Steel plants	(I)	Gypsum
(B)	Thermal power plants	(II)	Fly ash
(C)	Fertilizer industries	(III)	Slag
(D)	Paper mills	(IV)	Bio-degradable wastes

Choose the correct answer from the options given below :

(A)-(III), (B)-(II), (C)-(I), (D)-(IV)

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

(A)-(IV), (B)-(I), (C)-(II), (D)-(III)

(A)-(II), (B)-(III), (C)-(IV), (D)-(I)

Question 9.

Which of these reactions is not a part of breakdown of ozone in stratosphere?

C F_{2} C l_{2} (g) \overset{uv}{⟶} \overset{∙}{C} l (g) + \overset{∙}{C} F_{2} Cl (g)

C \overset{∙}{l} (g) + O_{3} (g) \overset{}{⟶} Cl \overset{∙}{O} (g) + O_{2} (g)

2 Cl \overset{∙}{O} \overset{}{⟶} Cl O_{2} (g) + C \overset{∙}{l} (g)

Cl \overset{∙}{O} (g) + O (g) \overset{}{⟶} C \overset{∙}{l} (g) + O_{2} (g)

Question 10.

Match List I with List II:

	LIST I (Species)		LIST II (Maximum allowed concentration in ppm in drinking water)
A.	$F^{-}$	I.	< 50 ppm
B.	${SO}_{4}^{2 -}$	II.	< 5 ppm
C.	${NO}_{3}^{-}$	III.	< 2 ppm
D.	$Zn$	IV.	< 500 ppm

Choose the correct answer from the options given below :

A-IV, B-III, C-II, D-I

A-I, B-II, C-III, D-IV

A-II, B-I, C-III, D-IV

A-III, B-IV C-I, D-II

Question 1.

The possibility of photochemical smog formation is more at :

Industrial areas

Himalayan villages in winter

The places with healthy vegetation

Marshy lands

Question 2.

The industrial activity held least responsible for global warming is :

manufacturing of cement

Electricity generation in thermal power plants

steel manufacturing

Industrial production of urea

Question 3.

How can photochemical smog be controlled?

By using catalytic convertors in the automobiles/industry.

By complete combustion of fuel.

By using tall chimneys.

By using catalyst.

Question 4.

Identify X, Y and Z in the following reaction. (Equation not balanced)

JEE Main 2023 (Online) 31st January Morning Shift Chemistry - Environmental Chemistry Question 19 English

X = {ClONO}_{2}, Y = HOCl, Z = {NO}_{2}

X = {ClNO}_{3}, Y = {Cl}_{2}, Z = {NO}_{2}

X = {ClONO}_{2}, Y = HOCl, Z = {HNO}_{3}

X = {ClNO}_{2}, Y = HCl, Z = {HNO}_{3}

Question 5.

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

Very clean water

Highly polluted water

Water has high amount of fluoride compounds

Slightly polluted water

Question 6.

Formation of photochemical smog involves the following reaction in which $A, B$ and $C$ are respectively.

$\begin{aligned} i. {NO}_{2} \overset{h v}{⟶} A + B \\ ii. B + O_{2} \to C \\ iii. A + C \to {NO}_{2} + O_{2} \end{aligned}$

Choose the correct answer from the options given below :

NO, O & O_{3}

N, O_{2} & O_{3}

O, N_{2} O & NO

O, NO & {NO}_{3}^{-}

Question 7.

The concentration of dissolved Oxygen in water for growth of fish should be more than $\underset{―}{X}$ ppm and Biochemical Oxygen Demand in clean water should be less than $\underset{―}{Y}$ ppm. X and Y in ppm are, respectively.

$X$	$Y$
4	15

$X$	$Y$
4	8

$X$	$Y$
6	12

$X$	$Y$
6	5

Question 8.

Correct statement about smog is :

_{2}

is present in classical smog

Both NO

_{2}

and SO

_{2}

are present in classical smog

Photochemical smog has high concentration of oxidizing agents

Classical smog also has high concentration of oxidizing agents

Question 9.

Some reactions of NO $_{2}$ relevant to photochemical smog formation are

JEE Main 2023 (Online) 25th January Morning Shift Chemistry - Environmental Chemistry Question 14 English

Identify A, B, X and Y :

X = [O], Y = NO, A = O_{2}, B = O_{3}

X = N_{2} O, Y = [O], A = O_{3}, B = NO

X = \frac{1}{2} O_{2}, Y = N O_{2}, A = O_{3}, B = O_{2}

X = NO, Y = [O], A = O_{2}, B = N_{2} O_{3}

Question 10.

Correct statement is :

An average human being consumes more food than air

An average human being consumes 100 times more air than food

An average human being consumes nearly 15 times more air than food

An average human being consumes equal amount of food and air

JEE Main Environmental Chemistry Practice Questions With Solutions

JEE Main Environmental Chemistry Practice Questions with Solutions

JEE Main Chemistry Environmental Chemistry Practice Questions

Question 1.

Question 2.

Question 3.

Question 4.

Question 5.

Question 6.

Question 7.

Question 8.

Question 9.

Question 10.

Question 1.

Question 2.

Question 3.

Question 4.

Question 5.

Question 6.

Question 7.

Question 8.

Question 9.

Question 10.

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