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

Which heavy metals do not have any safe limits

Question # 2

Minamata disease is due to pollution of

Question # 3

Which factor is helping to reduce the environmental pollution

Question # 4

Chief source of water and soil pollution is

Question # 5

Air pollution is not caused by

Question # 6

The pH range of the acid rain is

Question # 7

Chloroflurocarbon releases a chemical harmful to ozone

Question # 8

Which one is the most toxic?

Question # 9

Ozone hole is maximum over

Question # 10

SO2and NO2produce pollution by increasing

Question # 11

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

Question # 12

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

Question # 13

Water pollution is mainly due to

Question # 14

NO and NO2gases in atmosphere are represented by

Question # 15

Potable water is considered to be

Question # 16

The film forming components of paints are

Question # 17

Ozone hole refers to

Question # 18

The % of CO2is the atmosphere is

Question # 19

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

Question # 20

SO2Makes ______ acid rains

Question # 21

Fungicides are the pesticides which

Question # 22

In incinerating the waste is burnt at

Question # 23

UV radiations bring about

Question # 24

Depletion of ozone layer is due to

Question # 25

Increasing skin cancer and high mutation rate are due to

Question # 26

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

Question # 27

The region of earth capable of supporting life is

Question # 28

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

Question # 29

The amount of oxygen in the lithosphere is about

Question # 30

Most hazardous metal pollutant of automobile exhaust is

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Hydrocarbans, SO2, CO, NH3, nitrogen oxides and compounds of fluorine are called
A. Primary pollutant
B. Secondary pollutant
C. Tertiary pollutant
D. None of these
2 In incinerating the waste is burnt at
A. 1000°C
B. 100°C
C. 2000°C
D. 1500°C
3 SO2and NO2produce pollution by increasing
A. Alkalinity
B. Acidity
C. Neutrality
D. Buffer action
4 Which one is the most toxic?
A. Carbon
B. CO
C. CO2
D. SO2
5 Which of the following is not an air
A. N2
B. N2O
C. NO
D. CO
6 Which heavy metals do not have any safe limits
A. As
B. Hg
C. Cr
D. All of these
7 B.O.D is connected with
A. Organic matter
B. Microbes
C. Mircrobes and organic matter
D. None of the above
8 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
A. Blow air
B. Add Na2CO3
C. Use a specially made sorbent having flouring trapped in it
D. Use a sorbent having Al2O3trapped in it
9 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
10 Surface and ground water sources are contaminated by various human activities. Which of the followings is not a human activity that causes contamination in fresh water
A. Live stock waste
B. Oil leaks and spills
C. Disposal of industrial effluents
D. Rain

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