Air And Water Pollution Test

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Air And Water Pollution Test - 6

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Weekly Quiz Competition

Question 1
1 / -0

The temperature and pressure at which the three states of water can coexist in a stable equilibrium are

A
250.15 Kelvin and 450.11 Pascal

B
350.17 Kelvin and 150.11 Pascal

C
273.16 Kelvin and 611.73 Pascal

D
215.25 Kelvin and 511.73 Pascal
Question 2
1 / -0

The property of cohesion of water molecules at the surface of a water body is known as

A
Adhesion

B
Surface tension

C
Condensation

D
Precipitation
Question 3
1 / -0

Which of the following statements is true about the capillary action of water?

A
Capillary action is limited by gravity.

B
Capillary action is greater if the straw is thick.

C
Capillary action is independent of size of the straw.

D
Capillary action is less if the straw is thin.
Question 4
1 / -0

Which of the following statements is not true about the physical and chemical properties of water?

A
When water changes its state, its chemical properties do not change.

B
When temperature falls to 4^oC, water starts expanding.

C
Density of ice is less than the density of water.

D
Non-polar substances dissolve in water.

Solution

Non-polar substances do not dissolve in water as their molecules cannot form hydrogen bonds (thus are hydrophobic). However, they dissolve in lipids or fats (lipophilic).
Question 5
1 / -0

Which of the following statements is not true about water?

A
Aqua, hydrogen oxide, hydrogen hydroxide and hydrate are other names of water.

B
Water is a transparent, almost colourless liquid with slight tint of blue.

C
Melting point of water is 0 Kelvin.

D
Boiling point of water is 100°C
Question 6
1 / -0

Which of the following major decisions was taken by the Delhi Govt. to reduce pollution in Delhi?

A
Use of C.N.G. and unleaded petrol instead of petrol and diesel in the automobiles

B
Deforestation

C
Lessened use of automobiles

D
Use of electrostatic precipitator
Question 7
1 / -0

Water reacts with carbon dioxide in air to form

A
Hydrochloric acid

B
Nitric acid

C
Sulphuric acid

D
Carbonic acid
Question 8
1 / -0

What is the full form of WWF the study of which found that Ganga is one of the ten most endangered rivers?

A
World wide federation for nature

B
World wrestling federation for nature

C
World wide fund for nature

D
World wide foundation for nature
Question 9
1 / -0

Which of the following statements is incorrect?

A
Pesticide and weedicides used for protection of crops cause water pollution.

B
Ponds look green because of a lot of algae growing in them.

C
When the algae die, they serve food for decomposers.

D
A lot of carbon dioxide is used in the process of decomposition and its decreasing level kills aquatic organisms.
Question 10
1 / -0

Usually when water from power plants and industries is released into the river, it -

A
Increases the pressure of water suddenly.

B
Decreases the pressure of water.

C
Raises the temperature of the water body.

D
Decreases temperature of the water body.
Question 11
1 / -0

Which of the following diseases is caused due to water pollution?

A
Cholera

B
Malaria

C
Asthma

D
Cough
Question 12
1 / -0

Which of the following is a chemical method of purification of water?

A
Boiling

B
Chlorination

C
Filtration

D
None of these
Question 13
1 / -0

Which of the following options is the best method to make water fit for drinking at home?

A
Boiling

B
Candle filter

C
Using bleaching powder

D
Adding chlorine tablets
Question 14
1 / -0

What is potable water?

A
Water that can be used for bathing and washing and not fit for drinking.

B
Water that can be safe for drinking purpose.

C
Water that can be easily accessible.

D
Water that can be easily transportable from one place to another.
Question 15
1 / -0

Choose the incorrect matched statement:

A
Boiling: Kills the germs

B
Boiling: Chemical method

C
Chlorination: Use chlorine tablets to purify water

D
Chlorination: Chemical method
Question 16
1 / -0

Which of the following options is used to clean water in modern filters?

A
Chlorination

B
Candles used as a filter

C
Ultraviolet rays

D
Ozone gas or iodine
Question 17
1 / -0

Which of the following options is our mantra which helps to conserve water?

A
Reduce, Reproduce, Reuse

B
Reuse, Renew, Reproduce

C
Renew, Recycle, Reduce

D
Reduce, Reuse, Recycle
Question 18
1 / -0

To kill the germs in impure water, _______ element is used.

A
magnesium

B
manganese

C
chlorine

D
sulphur
Question 19
1 / -0

Which gaseous pollutants are responsible for causing acid rain?

A
SO₂, NO₂

B
SO₂, CO₂

C
NO₂, CO

D
CO₂, CO

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Re-Attempt Weekly Quiz Competition

Air And Water Pollution Test - 6

Result

Air And Water Pollution Test - 6

Score

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Rank

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SHARING IS CARING

Question 1

250.15 Kelvin and 450.11 Pascal

350.17 Kelvin and 150.11 Pascal

273.16 Kelvin and 611.73 Pascal

215.25 Kelvin and 511.73 Pascal

Question 2

Adhesion

Surface tension

Condensation

Precipitation

Question 3

Capillary action is limited by gravity.

Capillary action is greater if the straw is thick.

Capillary action is independent of size of the straw.

Capillary action is less if the straw is thin.

Question 4

When water changes its state, its chemical properties do not change.

When temperature falls to 4oC, water starts expanding.

Density of ice is less than the density of water.

Non-polar substances dissolve in water.

Solution

Question 5

Aqua, hydrogen oxide, hydrogen hydroxide and hydrate are other names of water.

Water is a transparent, almost colourless liquid with slight tint of blue.

Melting point of water is 0 Kelvin.

Boiling point of water is 100°C

Question 6

Use of C.N.G. and unleaded petrol instead of petrol and diesel in the automobiles

Deforestation

Lessened use of automobiles

Use of electrostatic precipitator

Question 7

Hydrochloric acid

Nitric acid

Sulphuric acid

Carbonic acid

Question 8

World wide federation for nature

World wrestling federation for nature

World wide fund for nature

World wide foundation for nature

Question 9

Pesticide and weedicides used for protection of crops cause water pollution.

Ponds look green because of a lot of algae growing in them.

When the algae die, they serve food for decomposers.

A lot of carbon dioxide is used in the process of decomposition and its decreasing level kills aquatic organisms.

Question 10

Increases the pressure of water suddenly.

Decreases the pressure of water.

Raises the temperature of the water body.

Decreases temperature of the water body.

Question 11

Cholera

Malaria

Asthma

Cough

Question 12

Boiling

Chlorination

Filtration

None of these

Question 13

Boiling

Candle filter

Using bleaching powder

Adding chlorine tablets

Question 14

Water that can be used for bathing and washing and not fit for drinking.

Water that can be safe for drinking purpose.

Water that can be easily accessible.

Water that can be easily transportable from one place to another.

Question 15

When temperature falls to 4^oC, water starts expanding.

SO₂, NO₂

SO₂, CO₂

NO₂, CO

CO₂, CO