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

Burning of fossil fuels is the main source of pollution

Question # 2

The normal amount of overhead ozone is about

Question # 3

Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution

Question # 4

Phosphate pollution is caused by

Question # 5

Which of the following is not an air

Question # 6

Ozone hole is maximum over

Question # 7

Biodegradable pollutant is

Question # 8

Spraying of DDT produces pollution of

Question # 9

Atmosphere of big/metropolitan cities is polluted most by

Question # 10

Chloroflurocarbon releases a chemical harmful to ozone

Question # 11

Ultraviolet radiation from sun causes a reaction that produces

Question # 12

Acid rain is due to increase in atmospheric concentration of

Question # 13

Carbon monoxide is harmful to human beings as it

Question # 14

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

Question # 15

Which of the following human activities are contaminating surface and ground waters

Question # 16

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

Question # 17

What is the cause of water pollution

Question # 18

The amount of oxygen in the lithosphere is about

Question # 19

Pick up the correct statement

Question # 20

B.O.D is connected with

Question # 21

In incinerating the waste is burnt at

Question # 22

Cyclone collector is used for minimizing

Question # 23

BOD is

Question # 24

Which is not the condition for the formation of smog

Question # 25

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

Question # 26

In the atmosphere, CO2is about

Question # 27

Environmental pollution affects

Question # 28

Which is not the affect of polluted air on environment

Question # 29

Increasing skin cancer and high mutation rate are due to

Question # 30

Air pollution is not caused by

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 What is the cause of water pollution
A. Chemical and bacterial contents in live stock
B. The spilled oil in rivers and ponds
C. Wide spread use of pesticides
D. All of the above
2 Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as
A. Environment
B. Hydrosphere
C. Pollutant
D. Biosphere
3 UV radiations bring about
A. Skin cancer
B. Mouth cancer
C. Lung cancer
D. Liver cancer
4 Acid rain is due to increase in atmospheric concentration of
A. Ozone and dust
B. CO2and CO
C. SO3and CO
D. SO2and NO2
5 Drawback DDT as presticide is
A. I becomes ineffective after some time
B. It is less effective than others
C. It is not easily/rapidly degraded in nature
D. Its high cost
6 Pick up the correct statement
A. CO which is major pollutant resulting from the combustion of fuels in automobile plays a major role in photochemical smog
B. Classical smog has an oxidizing character while the phtochemical smog is reducing in character
C. Photochemical smog occurs in day time whereas the classical smog occurs in early morning hours
D. During formation of smog the level of ozone in the atmosphere goes down
7 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
8 Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution
A. Live stock waste
B. Agricultural pesticides
C. Oil breaks and spills
D. All of the above
9 The amount of oxygen in the lithosphere is about
A. 35.50%
B. 40.60%
C. 56.60%
D. 50.50%
10 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
A. Iodine
B. Bromine
C. Lead
D. Carbon

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