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

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

A) Rapid increase in population

B) Transportation

C) All of the above

D) Industrialization

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

A) Carbon monoxide

B) Sulphur trioxide

C) Carbon dioxide

D) Oxygen

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3. Ozone is mostly concentrated in:

A) Thermosphere

B) Mesosphere

C) Troposphere

D) Stratosphere

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4. What adversely affects human health is

A) Ecosystem

B) atmosphere

C) pollutant

D) Ecosphere

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

A) CO

B) SO2

C) CO2

D) CFCs

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

A) 50000

B) 100000

C) 20000

D) 10000

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7. Which of the following is a primary pollutant?

A) PAN

B) H2SO4

C) H2CO3

D) CO

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

A) CO2

B) CO

C) N2O4

D) NO2

9 / 20

9. The thickness of the ozone layer is

A) 25-50km

B) 25-28km

C) 3km only

D) 1km only

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

A) Thermosphere

B) Mesosphere

C) Stratosphere

D) Troposphere

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

A) Ears

B) Eyes

C) Nose

D) Stomach

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

A) Mesosphere

B) Thermosphere

C) Troposphere

D) Stratosphere

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13. Ecosystem is a smaller unit of:

A) Biosphere

B) Lithosphere

C) Atmospheric

D) Hydrosphere

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14. 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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15. Why is CO called a pollutant? Reason is

A) inactivates nerves

B) it combines with hemoglobin

C) It combines with oxygen

D) It inactivates glycolysis

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16. The type of contaminants present in leachate is:

A) All

B) Dissolved

C) Microbial

D) Suspended

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17. Identify the wrong statement:

A) Ozone layer filter out the infrared radiations

B) Chlorofluorocarbons are responsible for ozone layer depletion

C) Greenhouse effect is responsible for global warming

D) Acid rain causes NOx and SOz

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18. The third major component of the atmosphere is:

A) O2

B) Ar

C) CO2

D) N2

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19. The pH range of acid rain is

A) 6.5 - 6

B) 7-6.5

C) less than 5

D) 8-7.5

20 / 20

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

A) Hydrosphere

B) Lithosphere

C) Atmosphere

D) Biosphere

Your score is

2nd Year Chemistry Chapter 16 MCQs Environmental Chemistry

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