Environmental Chemistry Test

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Environmental Chemistry Test - 5

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Weekly Quiz Competition

Question 1
1 / -0

Which of these reactions in the atmosphere leads to acid rain?

A
2SO₂+ O₂+ 2H₂O → 2H₂SO₄

B
S + O₂ → SO₂

C
CO₂ + H₂ → H₂CO₃

D
2Mg + O₂→ 2MgO

Solution

2SO₂+ O₂+ 2H₂O→ 2H₂SO₄ is the major reaction of acid rain. SO₂ emitted from burning of fossil fuels containing S reacts with O₂ and H₂O to form the acid leading to acid rain.
Question 2
1 / -0

The death of Scandinavian forests was blamed on:

A
Tree surgeons

B
Pollution from UK power stations

C
The Chernobyl disaster

D
Pollution from Scandinavian power stations

Solution

The death of Scandinavian forests was blamed on Pollution from UK power stations due to which seasons became very harsh. People used masks as breathing in that air became fatal.
Question 3
1 / -0

Acid rain does not cause:

A
Global warming

B
Erosion of limestone and marble

C
Damage to trees

D
Lakes with a very low pH

Solution

Acid rain does not cause Global warming as it does not release any greenhouse gas in the atmosphere.
Question 4
1 / -0

Sulphur dioxide levels can be reduced by using:

A
More efficient car engines

B
Low sulphur fuels

C
Low sulphur fuels

D
Catalytic converters

Solution

Sulphur dioxide levels can be reduced by using Low sulphur fuels so that less amount of SO₂ is produced from them.
Question 5
1 / -0

Which of these atmospheric pollutants is not released by car exhausts?

A
Carbon dioxide

B
Lead oxide

C
Carbon monoxide

D
Magnesium oxide

Solution

Magnesium oxide is not released by car exhaust because Mg is not present in the fuels.
Question 6
1 / -0

Unleaded paint and petrol were introduced because:

A
European Parliament told us to

B
Unleaded petrol made cars go faster

C
Lead was proven to affect the brain and causes mental impairment

D
It was cheaper to produce than leaded products

Solution

Unleaded paint and petrol were introduced because leaded petrol contains lead additives which created more pollutions. It also affect the brain and cause mental impairment. Cancer is a major threat caused by lead if inhaled or ingested.
Question 7
1 / -0

Chemical species present in the environment are either naturally occurring or generated by human activities. Their interrelation with the surroundings is called:

A
Environmental chemistry

B
Environmental chemical interactions

C
Environmental pollution

D
Environmental studies

Solution

Environmental chemistry basically deals with the interrelationship between chemical species generated by human activities or naturally.
Question 8
1 / -0

The greenhouse effect is where:

A
Solar panels are attached to the roofs of houses

B
Heat energy is trapped by the atmosphere

C
You take gardening too seriously

D
Too many buildings are built from glass

Solution

Atmospheric gases like CO₂ absorb energy from the sun, trap it near the earth surface in the atmosphere. It causes considerable rise in the temperature of earth.

Earlier it was used in cold countries to grow plants by making a house of glass called greenhouse which traps heat energy and the temperature inside the greenhouse was raised to suitable temperature for growth of plants.
Question 9
1 / -0

The greenhouse effect is thought to be the cause of:

A
Skin cancer

B
Huge tomatoes

C
An increase in asthma sufferers

D
An increase in global temperature

Solution

The greenhouse effect increases the global temperature if greenhouse gases are in excess.
Question 10
1 / -0

Global warming will not result in:

A
Increasing the size of the hole in the ozone layer

B
Increasing sea levels

C
Unpredictable climate patterns

D
Melting of the ice caps

Solution

Global warming will not increase the size of the hole in the ozone layer as temperature does not affect the depletion.

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Environmental Chemistry Test - 5

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Environmental Chemistry Test - 5

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SHARING IS CARING

Question 1

2SO2 + O2 + 2H2O → 2H2SO4

S + O2 → SO2

CO2 + H2 → H2CO3

2Mg + O2 → 2MgO

Solution

Question 2

Tree surgeons

Pollution from UK power stations

The Chernobyl disaster

Pollution from Scandinavian power stations

Solution

Question 3

Global warming

Erosion of limestone and marble

Damage to trees

Lakes with a very low pH

Solution

Question 4

More efficient car engines

Low sulphur fuels

Low sulphur fuels

Catalytic converters

Solution

Question 5

Carbon dioxide

Lead oxide

Carbon monoxide

Magnesium oxide

Solution

Question 6

European Parliament told us to

Unleaded petrol made cars go faster

Lead was proven to affect the brain and causes mental impairment

It was cheaper to produce than leaded products

Solution

Question 7

Environmental chemistry

Environmental chemical interactions

Environmental pollution

Environmental studies

Solution

Question 8

Solar panels are attached to the roofs of houses

Heat energy is trapped by the atmosphere

You take gardening too seriously

Too many buildings are built from glass

Solution

Question 9

Skin cancer

Huge tomatoes

An increase in asthma sufferers

An increase in global temperature

Solution

Question 10

Increasing the size of the hole in the ozone layer

Increasing sea levels

Unpredictable climate patterns

Melting of the ice caps

Solution

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2SO₂+ O₂+ 2H₂O → 2H₂SO₄

S + O₂ → SO₂

CO₂ + H₂ → H₂CO₃

2Mg + O₂→ 2MgO