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

00:00
Question # 1

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

Question # 2

Which causes water pollution?

Question # 3

Carbon monoxide is harmful to human beings as it

Question # 4

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

Question # 5

Chromium (VI) is highly toxic and can cause

Question # 6

Which gas is not a constituent of atmosphere

Question # 7

Water is often treated with chlorine to

Question # 8

Ozone hole refers to

Question # 9

Fungicides are the pesticides which

Question # 10

Exposure to CO results in

Question # 11

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

Question # 12

Sulphur dioxide affects

Question # 13

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 14

Ozone depletion in stratosphere shall result in

Question # 15

In incinerating the waste is burnt at

Question # 16

Soil remediation means

Question # 17

As it passes into food chain, the concentration of DDT

Question # 18

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 # 19

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg toxic

Question # 20

Minamata disease is due to pollution of

Question # 21

Pollutant of automobile exhausts that affects nervous system/produces mental diseases is

Question # 22

In the atmosphere, CO2is about

Question # 23

Atmosphere of big/metropolitan cities is polluted most by

Question # 24

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

Question # 25

Ecology is a science of environment and deals specially with

Question # 26

Shahi Qilla may be destroyed by

Question # 27

SO2Makes ______ acid rains

Question # 28

Which one of the following dissolves more rapidly in blood hemoglobin than oxygen?

Question # 29

What is the cause of water pollution

Question # 30

Chromium (VI) is highly toxic and can cause

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 The normal amount of overhead ozone is about
A. 250 Du
B. 300 DU
C. 350 DU
D. 400 DU
2 Sulphur dioxide affects
A. Cell wall
B. Plasmodesmata
C. All membrane systems
D. Nucleus
3 Soil salinity can be measured by
A. Calorimeter
B. Potometer
C. Porometer
D. Conducitvity meter
4 The region of earth capable of supporting life is
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
5 Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water
A. SO2
B. NO2
C. CO
D. A and b only
6 Chief source of water and soil pollution is
A. Mining
B. Thermal power plant
C. Agro-industry
D. All the above
7 Ozone hole is maximum over
A. Europe
B. Antarctica
C. Asia
D. Africa
8 Environmental pollution affects
A. Biotic components
B. Plants only
C. Man only
D. Biotic and abiotic components of environment
9 Which of the following human activities are contaminating surface and ground waters
A. Pesticides
B. Septic tanks
C. Petroleum and natural gas production
D. All of these
10 Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg toxic
A. It attaches to sulphur of the disulphide link
B. Hg is a heavy metal
C. Hg is liquid at room temperature
D. Hg is non reactive chemically

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