ECAT Pre Engineering Chemistry Chapter 27 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 27 Environmental Chemistry

Try The MCQ's Test For ECAT Chemistry Chapter 27 Environmental Chemistry

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ECAT Chemistry Chapter 27 Environmental Chemistry

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Question # 1

Pollution is

Question # 2

Acid rains are produced by

Question # 3

UV radiations bring about

Question # 4

Which is not a method for solid waste management

Question # 5

Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

Question # 6

Phosphate pollution is caused by

Question # 7

Photochemical smog is caused by

Question # 8

The 95.5% mass of Lithosphone is made of 11 elements i.e. O2, Si, Al, Fe, Ca, Na, K, Mg, Ti, H2and P. which element is present in trace amount

Question # 9

Ozone in most of the tropical regions acts as a pollutant and causes

Question # 10

Which causes water pollution?

Question # 11

Carbon monoxide, emitted by automobiles, prevents transport of oxygen in body due

Question # 12

Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called

Question # 13

Polycyolic aromatic hydrocarbons are taught to be

Question # 14

Fungicides are the pesticides which

Question # 15

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 16

Swage water is purified by

Question # 17

Which is not a component of environment

Question # 18

The toxic organic compounds and heavy metals and metalloids results in contamination of

Question # 19

When rain is accompanied by a thunderstorm, the collected rain water will have a pH value

Question # 20

Industrial effuents have toxic synthetic organic compounds as well as heavy metals like

Question # 21

The amount of Si in the lithosphere is about

Question # 22

Which one of the following is not air pollutant gas

Question # 23

Chloroflurocarbon releases a chemical harmful to ozone

Question # 24

Which factor is helping to reduce the environmental pollution

Question # 25

Atmosphere of big/metropolitan cities is polluted most by

Question # 26

Water which his considered to be safe for human consumption is known as

Question # 27

Which one is the major reason for pollution in high cities?

Question # 28

Acid rain is due to increase in atmospheric concentration of

Question # 29

Most hazardous metal pollutant of automobile exhaust is

Question # 30

Which is not the affect of polluted air on environment

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Air pollution is not caused by
A. Pollen grains
B. Hydroelectric power
C. Industries
D. Automobiles
2 Chief air pollutant which is likely to deplete ozone layer
A. Sulphure dioxide
B. Carbon dioxide
C. Nitrogen oxides and chloro fluorocarbons
3 DDT is
A. Biodegradable pollutant
B. Nondegradable pollutant
C. Not a pollutant
D. An antibiotic
4 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
5 Minamata disease is due to pollution of
A. Organic waste into drinking water
B. Oil spill in water
C. Industrial waste containing mercury into fishing water
D. Arsenic into the atmosphere
6 The region of earth capable of supporting life is
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
7 Soil salinity can be measured by
A. Calorimeter
B. Potometer
C. Porometer
D. Conducitvity meter
8 Which of the following waste material is not recycled for use again
A. Paper
B. Plastic
C. Hides of animals
D. Glass
9 To purify water which has mud dissolved in it, A substance which coagulates the suspended particles is used. The coagulant may be
A. Ag+
B. Cu2+
C. Al3+
D. Si4+
10 Which one is the major reason for pollution in high cities?
A. Fossil fuel
B. Acid rain
C. Heat dispersion
D. None of the above

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