Environmental Chemistry Test

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Environmental Chemistry Test - 6

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Weekly Quiz Competition

Question 1
4 / -1

SO₂ causes

A
Respiratory and lung disease

B
Acid rain

C
Corrosion of building material

D
All of the above.

Solution

SO₂ causes eye irritation, damages respiratory tract, produces asthma and bronchitis. It also causes acid rain and destroys materials.
Question 2
4 / -1

Aerosols present in air are

A
Negatively charged

B
Positively charged

C
Neutral

D
Combination of all of the above.

Solution

Aerosols present in air may be neutral negatively charged of positively charged.
Question 3
4 / -1

Pollutants released from iron and steel industry are

A
CO₂,NO₂,H₂S

B
CO,CO₂,SO₂

C
CO₂,SO₃,NO₂

D
CO₂,NO and SO₃

Solution

CO, CO₂ and SO₂ are released from iron and steel industries.
Question 4
4 / -1

Which of the following does not cause water pollution?

A
Heavy metals such as Hg, Pb, Cd

B
Detergents

C
Chemical effluents

D
Freons

Solution

Freons only cause air pollution.
Question 5
4 / -1

White lung cancer is caused by

A
Paper

B
Textiles

C
Silica

D
Asbestos

Solution

White lung cancer – by inhalation of cotton fibres.
Question 6
4 / -1

Which of the following pollutants is not emitted during volcanic eruptions?

A
SO₂

B
H₂S

C
Hydrocarbons

D
CO

Solution

Hydrocarbons are not emitted during volcanic eruptions.
Question 7
4 / -1

Aerobic oxidation is caused by

A
Aerobic bacteria in presence of excess of oxygen

B
Aerobic bacteria in absence of oxygen

C
Anaerobic bacteria in presence of oxygen

D
Anaerobic bacteria in absence of oxygen.

Solution

Aerobic oxidation is caused by aerobic bacteria in presence of O_2.
Question 8
4 / -1

Lake containing excess of nutritious substances are called

A
Polluted Lakes

B
Eutrophic Lakes

C
Dead Lake

D
Green Lake

Solution

The excessive growth of algae and aquatic plants due to nutrients present in a lake is called eutrophication.
Question 9
4 / -1

Which of the following is responsible for eutrophication of lakes?

A
Cl^-

B
Ca²⁺

C

D

Solution

Nitrogen and phosphorus fertilizers which are drained from agricultural lands into water bodies cause eutrophication.
Question 10
4 / -1

Ultraviolet radiation is absorbed by

A
Exosphere

B
ionosphere

C
ozonosphere

D
Stratosphere

Solution

UV radiations are absorbed in stratosphere.

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Environmental Chemistry Test - 6

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Environmental Chemistry Test - 6

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Question 1

Respiratory and lung disease

Acid rain

Corrosion of building material

All of the above.

Solution

Question 2

Negatively charged

Positively charged

Neutral

Combination of all of the above.

Solution

Question 3

CO2,NO2,H2S

CO,CO2,SO2

CO2,SO3,NO2

CO2,NO and SO3

Solution

Question 4

Heavy metals such as Hg, Pb, Cd

Detergents

Chemical effluents

Freons

Solution

Question 5

Paper

Textiles

Silica

Asbestos

Solution

Question 6

SO2

H2S

Hydrocarbons

CO

Solution

Question 7

Aerobic bacteria in presence of excess of oxygen

Aerobic bacteria in absence of oxygen

Anaerobic bacteria in presence of oxygen

Anaerobic bacteria in absence of oxygen.

Solution

Question 8

Polluted Lakes

Eutrophic Lakes

Dead Lake

Green Lake

Solution

Question 9

Cl-

Ca2+

Solution

Question 10

Exosphere

ionosphere

ozonosphere

Stratosphere

Solution

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CO₂,NO₂,H₂S

CO,CO₂,SO₂

CO₂,SO₃,NO₂

CO₂,NO and SO₃

SO₂

H₂S

Cl^-

Ca²⁺