Air Test

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Air Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

In which layer of atmosphere, most of the air is present?

A
Troposphere

B
Stratosphere

C
Mesosphere

D
Thermosphere

Solution

Most of the air is present in Troposphere.
Question 2
1 / -0

What level of mercury in the column is equal to the value of 1 atmospheric pressure?

A
76 cm

B
75 cm

C
66 cm

D
56 cm
Question 3
1 / -0

How nitrogen is returned to atmosphere?

A
By burning

B
By action of bacteria

C
Decomposition by the action of denitrifying bacteria

D
It is trapped inside the body as organic compounds and is not released.
Question 4
1 / -0

Which components of air are present in the air exhaled by humans during breathing?

A
Only CO₂

B
More CO₂ and less O₂

C
N₂, CO₂, O₂ and water vapour

D
CO₂, O₂ and water vapour
Question 5
1 / -0

Which of the following statements is correct?

A
Carbon dioxide allows the earth to radiate heat rapidly at night.

B
Percentage of carbon dioxide in air varies from 3% to 4%.

C
Argon is a noble gas which is used for filling electric bulbs.

D
A combustible substance combines with nitrogen to liberate heat energy.
Question 6
1 / -0

Which of the following gases is not a green house gas?

A
Carbon dioxide

B
Water vapour

C
Methane

D
Nitrogen dioxide
Question 7
1 / -0

Which of the following inert gases is filled in electric bulbs?

A
Neon

B
Xenon

C
Krypton

D
Argon

Solution

Argon gas is mixed with a small amount of nitrogen and this mixture is filled in the bulbs under some pressure.
Question 8
1 / -0

How many atoms of oxygen are present in ozone gas?

A
1

B
2

C
3

D
4
Question 9
1 / -0

What is the value of atmospheric pressure in KPa?

A
100.3

B
101.3

C
103.3

D
3.3
Question 10
1 / -0

The process of converting ammonia or ammonium salts into nitrites by bacteria is called _______.

A
nitrification

B
denitrification

C
ammonification

D
deammonification

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Re-Attempt Weekly Quiz Competition

Air Test - 1

Result

Air Test - 1

Score

-

Rank

-

SHARING IS CARING

Question 1

Troposphere

Stratosphere

Mesosphere

Thermosphere

Solution

Question 2

76 cm

75 cm

66 cm

56 cm

Question 3

By burning

By action of bacteria

Decomposition by the action of denitrifying bacteria

It is trapped inside the body as organic compounds and is not released.

Question 4

Only CO2

More CO2 and less O2

N2, CO2, O2 and water vapour

CO2, O2 and water vapour

Question 5

Carbon dioxide allows the earth to radiate heat rapidly at night.

Percentage of carbon dioxide in air varies from 3% to 4%.

Argon is a noble gas which is used for filling electric bulbs.

A combustible substance combines with nitrogen to liberate heat energy.

Question 6

Carbon dioxide

Water vapour

Methane

Nitrogen dioxide

Question 7

Neon

Xenon

Krypton

Argon

Solution

Question 8

1

2

3

4

Question 9

100.3

101.3

103.3

3.3

Question 10

nitrification

denitrification

ammonification

deammonification

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Only CO₂

More CO₂ and less O₂

N₂, CO₂, O₂ and water vapour

CO₂, O₂ and water vapour