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

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

Question # 2

Acid rains are produced by

Question # 3

Polycyolic aromatic hydrocarbons are taught to be

Question # 4

In incinerating the waste is burnt at

Question # 5

SO2and NO2produce pollution by increasing

Question # 6

Which causes water pollution?

Question # 7

In water the most important oxidizing agent is dissolved molecular oxygen which ranges from

Question # 8

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

Question # 9

Shahi Qilla may be destroyed by

Question # 10

Carbon monoxide is harmful to human beings as it

Question # 11

UV radiations bring about

Question # 12

Chief air pollutant which is likely to deplete ozone layer

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

Environmental pollution affects

Question # 17

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 # 18

Domestic waste mostly constitutes

Question # 19

Most hazardous metal pollutant of automobile exhaust is

Question # 20

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

Question # 21

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

Question # 22

Ozone hole is maximum over

Question # 23

Photochemical smog is caused by

Question # 24

Chromium (VI) is highly toxic and can cause

Question # 25

The normal amount of overhead ozone is about

Question # 26

Increased asthmatic attacks in certain seasons are related to

Question # 27

Water is often treated with chlorine to

Question # 28

The region of earth capable of supporting life is

Question # 29

Increasing skin cancer and high mutation rate are due to

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 Which one is not a pollutant normally?
A. Hydrocarbons
B. Carbon dioxide
C. Carbon monoxide
D. Sulphur dioxide
2 Exposure to CO results in
A. Headache
B. Fatigue
C. Unconsciousness
D. All of these
3 The region of earth capable of supporting life is
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
4 A single chlorine free radical can destroy how many ozone molecules
A. 100
B. 100000
C. 10000
D. 10
5 Carbon monoxide, emitted by automobiles, prevents transport of oxygen in body due
A. Combining with oxygen to form carbon dioxide
B. Destruction of hemoglobin
C. Preventing reaction between oxygen and hemoglobin
D. Forming stable compound with hemoglobin
6 UV radiations bring about
A. Skin cancer
B. Mouth cancer
C. Lung cancer
D. Liver cancer
7 Biodegradable pollutant is
A. Plastic
B. Asbestos
C. Sewage
D. Mercury
8 Which is not the condition for the formation of smog
A. There must be sufficient NO gas
B. There must be sunlight to help photo chemical reaction to take place
C. Air must be blowing swiftly
D. There must be SO2in the air
9 Most hazardous metal pollutant of automobile exhaust is
A. Mercury
B. Lead
C. Cadmium
D. Copper
10 In purification of potable water the coagulant used is
A. Nickle sulpahte
B. Copper sulpahte
C. Barium sulpahte
D. Alum

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