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

In incinerating the waste is burnt at

Question # 2

Swage water is purified by

Question # 3

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

Question # 4

Which causes water pollution?

Question # 5

The toxic organic compounds and heavy metals and metalloids results in contamination of

Question # 6

Ozone hole is maximum over

Question # 7

Ecology is a science of environment and deals specially with

Question # 8

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

Question # 9

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

Question # 10

Cyclone collector is used for minimizing

Question # 11

Result of ozone hole is

Question # 12

Sulphur dioxide affects

Question # 13

Water pollution is mainly due to

Question # 14

NO and NO2gases in atmosphere are represented by

Question # 15

Which is not the condition for the formation of smog

Question # 16

Soil remediation means

Question # 17

The pH of the rain water in areas where acid rain is the cause of pollution may be

Question # 18

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

Question # 19

Chlorofluorocarbon, CF2CI2, plays an effective role in removing O3(ozone) in the stratosphere. Which reaction does not cause the depletion of ozone

Question # 20

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

Question # 21

The amount of Si in the lithosphere is about

Question # 22

Increasing skin cancer and high mutation rate are due to

Question # 23

Which heavy metals do not have any safe limits

Question # 24

Polycyolic aromatic hydrocarbons are taught to be

Question # 25

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

Question # 26

Pick up the correct statement

Question # 27

Which factor is helping to reduce the environmental pollution

Question # 28

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

Question # 29

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

Question # 30

Which is not a component of environment

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 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
2 Domestic waste mostly constitutes
A. Non-biodegradable pollution
B. Biodegradable pollution
C. Effluents
D. Air pollution
3 Water which his considered to be safe for human consumption is known as
A. Distilled water
B. Contaminated water
C. Potable water
D. Rain water
4 Atmosphere of big/metropolitan cities is polluted most by
A. Automobile exhausts
B. Pesticide residue
C. Household waste
D. Radio-active fall out
5 Result of ozone hole is
A. Green house effect
B. Global warming
C. Acid rain
D. UV rays reach the earth
6 Soil salinity can be measured by
A. Calorimeter
B. Potometer
C. Porometer
D. Conducitvity meter
7 Biodegradable pollutant is
A. Plastic
B. Asbestos
C. Sewage
D. Mercury
8 Which one of the following dissolves more rapidly in blood hemoglobin than oxygen?
A. Ozone
B. Nitrous oxide
C. Sulphure dioxide
D. Carbon monoxide
9 DDT is
A. Biodegradable pollutant
B. Nondegradable pollutant
C. Not a pollutant
D. An antibiotic
10 BOD is
A. Biological oxygen deficit
B. Biosphere oxygen demand
C. Biological oxygen demand
D. None of the above

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