2nd Year Chemistry Chapter 16 MCQs Environmental Chemistry

Check the important 2nd Year Chemistry Chapter 16 MCQs Environmental Chemistry here. This chapter is about the study of different chemicals in the environment. There are different pollutants including CO, SO2, and oxides of Nitrogen that are polluting the environment. The polluted air that has chemical pollutants including CO, SO2, and Oxides of Nitrogen are very dangerous for the environment. There are causes of Water pollution. There are different ways to prepare purified water and treatment of industrial waste to clean the environment. Now let’s move toward the MCQs and start preparing for the entrance test. Solve the quiz given below and also check the answers.

2nd Year Chemistry Chapter 16 MCQs Environmental Chemistry

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2nd Year Chemistry Chapter 16

1 / 20

1. Ecosystem is a smaller unit of:

A) Hydrosphere

B) Biosphere

C) Lithosphere

D) Atmospheric

2 / 20

2. Peroxyacetyl nitrate is an irritant to human beings and it affects humans:

A) Ears

B) Eyes

C) Nose

D) Stomach

3 / 20

3. The third major component of the atmosphere is:

A) CO2

B) O2

C) N2

D) Ar

4 / 20

4. What adversely affects human health is

A) atmosphere

B) pollutant

C) Ecosystem

D) Ecosphere

5 / 20

5. Which component of the atmosphere is far away from earth's surface?

A) Thermosphere

B) Mesosphere

C) Stratosphere

D) Troposphere

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6. The one which reacts with hemoglobin of blood and produces toxic effect:

A) Carbon dioxide

B) Sulphur trioxide

C) Carbon monoxide

D) Oxygen

7 / 20

7. Which of the following air pollutants is quite killer:

A) N2O4

B) CO

C) CO2

D) NO2

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8. Choose the chief air pollutant among the following which depletes ozone player

A) CFCs

B) CO

C) SO2

D) CO2

9 / 20

9. The type of contaminants present in leachate is:

A) All

B) Suspended

C) Microbial

D) Dissolved

10 / 20

10. CFCs destroy the ozone layer. How many ozone molecules a chlorine-free radical can destroy?

A) 50000

B) 20000

C) 100000

D) 10000

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11. Which of the following is considered as a cause of pollution:

A) Transportation

B) Industrialization

C) All of the above

D) Rapid increase in population

12 / 20

12. Identify the wrong statement:

A) Chlorofluorocarbons are responsible for ozone layer depletion

B) Ozone layer filter out the infrared radiations

C) Acid rain causes NOx and SOz

D) Greenhouse effect is responsible for global warming

13 / 20

13. In which of the following layer of the atmosphere, there is more thickness of ozone:

A) Mesosphere

B) Stratosphere

C) Troposphere

D) Thermosphere

14 / 20

14. Which of the following is a primary pollutant?

A) PAN

B) CO

C) H2CO3

D) H2SO4

15 / 20

15. The pH range of acid rain is

A) 7-6.5

B) 8-7.5

C) 6.5 - 6

D) less than 5

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16. Why is CO called a pollutant? Reason is

A) It combines with oxygen

B) It inactivates glycolysis

C) it combines with hemoglobin

D) inactivates nerves

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17. The primary pollutant is that

A) which causes cancer

B) Whose concentration cannot be controlled

C) waste product of an industry

D) which corrode the metal only

18 / 20

18. Ozone is mostly concentrated in:

A) Mesosphere

B) Stratosphere

C) Troposphere

D) Thermosphere

19 / 20

19. The major component of the environment where life can exist is called:

A) Biosphere

B) Lithosphere

C) Hydrosphere

D) Atmosphere

20 / 20

20. The thickness of the ozone layer is

A) 3km only

B) 1km only

C) 25-28km

D) 25-50km

Your score is

2nd Year Chemistry Chapter 16 MCQs Environmental Chemistry

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