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

Chief source of water and soil pollution is

Question # 2

Which one is the most toxic?

Question # 3

In incinerating the waste is burnt at

Question # 4

The region of earth capable of supporting life is

Question # 5

Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

Question # 6

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

Question # 7

Fungicides are the pesticides which

Question # 8

Which of the following is not an air

Question # 9

Atmosphere of big/metropolitan cities is polluted most by

Question # 10

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

Question # 11

Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water

Question # 12

Which of the following forms a toxic substance in blood by combing with hemoglobin?

Question # 13

Which is not a method for solid waste management

Question # 14

Acid rain is due to increase in atmospheric concentration of

Question # 15

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 # 16

Which gas is not a constituent of atmosphere

Question # 17

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 18

A pollutant affects

Question # 19

UV radiations bring about

Question # 20

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 # 21

Acid rains are produced by

Question # 22

Ultraviolet radiation from sun causes a reaction that produces

Question # 23

Ozone depletion in stratosphere shall result in

Question # 24

Which causes water pollution?

Question # 25

Increasing skin cancer and high mutation rate are due to

Question # 26

Which step is unnecessary for purification of water for drinking purposes

Question # 27

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

Question # 28

Photochemical smog is caused by

Question # 29

Ecology is a science of environment and deals specially with

Question # 30

Which one is not a pollutant normally?

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 The pH range of the acid rain is
A. 8 - 7
B. 7 - 6.5
C. 6.5 - 6
D. Less than 5
2 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
3 The amount of Si in the lithosphere is about
A. 27.72%
B. 30.35%
C. 35.30%
D. 40.21%
4 CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy
A. 10,000
B. 20,000
C. 100,000
D. 50,000
5 A pollutant affects
A. Human health
B. Quality of life
C. Functioning of ecosystem
D. All of these
6 SO2and NO2produce pollution by increasing
A. Alkalinity
B. Acidity
C. Neutrality
D. Buffer action
7 DDT is
A. Biodegradable pollutant
B. Nondegradable pollutant
C. Not a pollutant
D. An antibiotic
8 Ozone depletion in stratosphere shall result in
A. Forest fires
B. Increased incidence of skin cancer
C. Global warming
D. None of the above
9 Which gas is not a constituent of atmosphere
A. Xe
B. O3
C. H2
D. F2
10 Atomospheric pollutant is
A. CO2
B. CO
C. O2
D. N2

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