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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  • Time Allowed30

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ECAT Chemistry Chapter 27 Environmental Chemistry

00:00
Question # 1

A single chlorine free radical can destroy how many ozone molecules

Question # 2

Minamata disease is due to pollution of

Question # 3

In purification of potable water the coagulant used is

Question # 4

The normal amount of overhead ozone is about

Question # 5

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

Question # 6

Acid rains are produced by

Question # 7

UV radiations bring about

Question # 8

As it passes into food chain, the concentration of DDT

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

Which is not the condition for the formation of smog

Question # 13

Biodegradable pollutant is

Question # 14

Swage water is purified by

Question # 15

The pH range of the acid rain is

Question # 16

Which is not a method for solid waste management

Question # 17

SO2Makes ______ acid rains

Question # 18

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

Question # 19

Which heavy metals do not have any safe limits

Question # 20

Spraying of DDT produces pollution of

Question # 21

Increased asthmatic attacks in certain seasons are related to

Question # 22

The region of earth capable of supporting life is

Question # 23

Ozone depletion in stratosphere shall result in

Question # 24

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg toxic

Question # 25

Exposure to CO results in

Question # 26

CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy

Question # 27

When chlorofluoro carbon are subjected to U.V. they form

Question # 28

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

Question # 29

Ecology is a science of environment and deals specially with

Question # 30

Which one is the major reason for pollution in high cities?

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 NO and NO2gases in atmosphere are represented by
A. NO
B. NO4
C. NOx
D. NxOy
2 Pollution is
A. Removal of top soill
B. Release of toxic/undesirable materials in enevironment
C. Conversation of energy
D. All the above
3 Ozone in most of the tropical regions acts as a pollutant and causes
A. Damages to eyes
B. Aggravates asthma
C. Chest discomfort
D. All of these
4 The region of earth capable of supporting life is
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
5 Biodegradable pollutant is
A. Plastic
B. Asbestos
C. Sewage
D. Mercury
6 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
7 UV radiations bring about
A. Skin cancer
B. Mouth cancer
C. Lung cancer
D. Liver cancer
8 Which gas is not a constituent of atmosphere
A. Xe
B. O3
C. H2
D. F2
9 Carbon monoxide is pollutant as it
A. Inactivates nerves
B. Inhibits glycolysis
C. Combines with oxygen
D. Combines with hemoglobin
10 Soil salinity can be measured by
A. Calorimeter
B. Potometer
C. Porometer
D. Conducitvity meter

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