Environmental Chemistry Test

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Environmental Chemistry Test - 30

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Weekly Quiz Competition

Question 1
1 / -0

Paper bags are preferred over plastic ones because:

A
plastic bags are light

B
paper bags are stronger

C
plastic bags are not biodegradable

D
paper bags are not biodegradable

Solution

Paper bags are more environment-friendly than plastics bags because they are made for a renewable resource, and biodegrade and can be easily recycled.
Question 2
1 / -0

Sea and land breezes are caused because of

A
rains

B
convection

C
conduction

D
none of these

Solution

Convection is the heat transfer due to bulk movement of molecules within fluids such as gases and liquids.It is main cause for sea and breezes,
Question 3
1 / -0

It is not advised to take bath in the first rain because of which one of the following?

A
Bases fall along with the rain due to air pollution

B
Green house effect

C
Global warming

D
Harmful toxic gases from the factories combine with the considering water vapors

E
All of these
Question 4
1 / -0

Ozone is found in the atmosphere and helps to protect us from harmful radiation. Ozone is

A
$$\displaystyle { O }^{ 2- }$$

B
$$\displaystyle { O }^{ - }$$

C
$$\displaystyle \\ { O }_{ 2 }\\ $$

D
$$\displaystyle \\ { O }_{ 3 }\\ $$

Solution

Ozone is an inorganic molecule formed by the three molecules of oxygen with the chemical formula O$$_3$$. It is a pale blue gas with a distinctively pungent smell. It is an allotrope of oxygen that is much less stable than the diatomic allotrope O$$_2$$ and more reactive molecule.
Question 5
1 / -0

Smog is a/an :

A
air pollutant

B
water pollutant

C
noise pollutant

D
land pollutant
Question 6
1 / -0

Which one of the following organisation's iron and steel plant was build to use charcoal as a source of power, to start with, but later switched over to hydroelectricity ?

A
The Tata Iron Steel Company

B
The Indian Iron and Steel Company

C
Mysore Iron and Steel Company

D
Hindustan Steel Limited

Solution

The Tata Iron Steel Company established in 1907 was build to use charcoal as a source of power, to start with, but later switched over to hydroelectricity.
Question 7
1 / -0

What is the abundance of oxygen in the universe?

A
2nd most common element, by mass

B
3rd most common element, by mass

C
5th most abundant element, by mass

D
Oxygen is relatively rare in the universe

Solution

Oxygen is the $$third$$ most abundant element in the universe and makes up nearly 21% of the earth's atmosphere. Oxygen accounts for nearly half of the mass of the earth's crust, two thirds of the mass of the human body and nine tenths of the mass of water.
Question 8
1 / -0

Which of the following is affected by acid rains?

A
Infrastructure

B
Aquatic life

C
Plants

D
All of the above

Solution

Buildings are eroded by acid rains. When acid rain makes way into lakes, rivers it affects the aquatic life and affects the forests by affecting the minerals uptake of the plants.
Question 9
1 / -0

Which oxides cause acid rains?

A
Sulphur dioxide

B
Nitrogen oxide

C
Carbon dioxide

D
Both A and B

Solution

Air pollution from burning of fossil fuels is the major cause of acid rain. The main chemicals in air pollution that create acid rain are sulfur dioxide ($$SO_2$$) and nitrogen oxides. Acid rain usually forms high in the clouds where sulfur dioxide and nitrogen oxides react with water, oxygen, and oxidants. this mixture forms a mild solution of sulfuric acid and nitric acid. Sunlight increases the rate of most of these reactions. Rainwater, snow, fog, and other forms of precipitation containing those mild solutions of sulfuric and nitric acids fall to earth as acid rain.
Question 10
1 / -0

The atmospheric pollutants or gases that form smog are released in the air ________.

A
when some thing burnt

B
when fuels are burnt.

C
when wool is burnt

D
none of these

Solution

The word smog was coined to describe the combination of smoke and fog.

$$ \text{Smoke} + \text{Fog} \rightarrow \text{Smog}$$

The name was proposed to describe the phenomenon which occurred due to condensation of some kind of fog on the carbon particles present in the smoke produced due to combustion of fuels like coal and petroleum.

Thus, the atmospheric pollutants or gases that form smog are released in the air when fuels are burnt.

Hence, the correct option is $$\text{B}$$

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Re-Attempt Weekly Quiz Competition

Environmental Chemistry Test - 30

Result

Environmental Chemistry Test - 30

Score

-

Rank

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SHARING IS CARING

Question 1

plastic bags are light

paper bags are stronger

plastic bags are not biodegradable

paper bags are not biodegradable

Solution

Question 2

rains

convection

conduction

none of these

Solution

Question 3

Bases fall along with the rain due to air pollution

Green house effect

Global warming

Harmful toxic gases from the factories combine with the considering water vapors

All of these

Question 4

$$\displaystyle { O }^{ 2- }$$

$$\displaystyle { O }^{ - }$$

$$\displaystyle \\ { O }_{ 2 }\\ $$

$$\displaystyle \\ { O }_{ 3 }\\ $$

Solution

Question 5

air pollutant

water pollutant

noise pollutant

land pollutant

Question 6

The Tata Iron Steel Company

The Indian Iron and Steel Company

Mysore Iron and Steel Company

Hindustan Steel Limited

Solution

Question 7

2nd most common element, by mass

3rd most common element, by mass

5th most abundant element, by mass

Oxygen is relatively rare in the universe

Solution

Question 8

Infrastructure

Aquatic life

Plants

All of the above

Solution

Question 9

Sulphur dioxide

Nitrogen oxide

Carbon dioxide

Both A and B

Solution

Question 10

when some thing burnt

when fuels are burnt.

when wool is burnt

none of these

Solution

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