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) Biosphere

B) Lithosphere

C) Hydrosphere

D) Atmospheric

2 / 20

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

A) Troposphere

B) Mesosphere

C) Stratosphere

D) Thermosphere

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

A) Ears

B) Eyes

C) Nose

D) Stomach

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

A) NO2

B) CO

C) CO2

D) N2O4

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5. The primary pollutant is that

A) Whose concentration cannot be controlled

B) which causes cancer

C) waste product of an industry

D) which corrode the metal only

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6. What adversely affects human health is

A) pollutant

B) Ecosystem

C) Ecosphere

D) atmosphere

7 / 20

7. Which of the following is a primary pollutant?

A) CO

B) H2SO4

C) PAN

D) H2CO3

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8. Why is CO called a pollutant? Reason is

A) It combines with oxygen

B) It inactivates glycolysis

C) inactivates nerves

D) it combines with hemoglobin

9 / 20

9. The type of contaminants present in leachate is:

A) Microbial

B) Suspended

C) All

D) Dissolved

10 / 20

10. Identify the wrong statement:

A) Acid rain causes NOx and SOz

B) Chlorofluorocarbons are responsible for ozone layer depletion

C) Greenhouse effect is responsible for global warming

D) Ozone layer filter out the infrared radiations

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

A) Atmosphere

B) Biosphere

C) Lithosphere

D) Hydrosphere

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

A) Carbon dioxide

B) Sulphur trioxide

C) Carbon monoxide

D) Oxygen

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13. The third major component of the atmosphere is:

A) O2

B) Ar

C) CO2

D) N2

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

A) Rapid increase in population

B) All of the above

C) Industrialization

D) Transportation

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15. The thickness of the ozone layer is

A) 1km only

B) 25-50km

C) 3km only

D) 25-28km

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16. Ozone is mostly concentrated in:

A) Thermosphere

B) Stratosphere

C) Mesosphere

D) Troposphere

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

A) Thermosphere

B) Stratosphere

C) Troposphere

D) Mesosphere

18 / 20

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

A) CO

B) CFCs

C) SO2

D) CO2

19 / 20

19. The pH range of acid rain is

A) less than 5

B) 6.5 - 6

C) 8-7.5

D) 7-6.5

20 / 20

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

A) 20000

B) 10000

C) 100000

D) 50000

Your score is

2nd Year Chemistry Chapter 16 MCQs Environmental Chemistry

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