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

A pollutant affects

Question # 2

The largest item which is recycled is

Question # 3

One of the environmental problem is the formation of oil slicks when oil is spilled from tankers in sea water. Which treatment is suitable to remove oil slicks

Question # 4

In purification of potable water the coagulant used is

Question # 5

In incinerating the waste is burnt at

Question # 6

Acid rain is due to increase in atmospheric concentration of

Question # 7

Chromium (VI) is highly toxic and can cause

Question # 8

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

Question # 9

Soil salinity can be measured by

Question # 10

Carbon monoxide is harmful to human beings as it

Question # 11

Drained sewage has B.O.D

Question # 12

Which causes water pollution?

Question # 13

As it passes into food chain, the concentration of DDT

Question # 14

B.O.D is connected with

Question # 15

In Antarctica ozone depletion is due to the formation of following compound

Question # 16

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

Question # 17

Which of the following is not an air

Question # 18

Chief air pollutant which is likely to deplete ozone layer

Question # 19

Which is not a method for solid waste management

Question # 20

Spraying of DDT produces pollution of

Question # 21

Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as

Question # 22

DDT is

Question # 23

Ecology is a science of environment and deals specially with

Question # 24

Which is not a component of environment

Question # 25

Fungicides are the pesticides which

Question # 26

Minamata disease is due to pollution of

Question # 27

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

Question # 28

Which one is not a pollutant normally?

Question # 29

Pick up the correct statement

Question # 30

The normal amount of overhead ozone is about

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 In Antarctica ozone depletion is due to the formation of following compound
A. Acrolein
B. Peroxy acetyl nitrate
C. SO2and SO3
D. Chlorine nitrate
2 Ozone depletion in stratosphere shall result in
A. Forest fires
B. Increased incidence of skin cancer
C. Global warming
D. None of the above
3 Atmosphere of big/metropolitan cities is polluted most by
A. Automobile exhausts
B. Pesticide residue
C. Household waste
D. Radio-active fall out
4 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
5 The amount of oxygen in the lithosphere is about
A. 35.50%
B. 40.60%
C. 56.60%
D. 50.50%
6 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
7 DDT is
A. Biodegradable pollutant
B. Nondegradable pollutant
C. Not a pollutant
D. An antibiotic
8 Domestic waste mostly constitutes
A. Non-biodegradable pollution
B. Biodegradable pollution
C. Effluents
D. Air pollution
9 Pollutant of automobile exhausts that affects nervous system/produces mental diseases is
A. Mercury
B. Lead
C. Nitrogen oxide
D. Sulphuric oxide
10 BOD is
A. Biological oxygen deficit
B. Biosphere oxygen demand
C. Biological oxygen demand
D. None of the above

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