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

Classical smog occurs in palces of

Question # 2

Most hazardous metal pollutant of automobile exhaust is

Question # 3

Water is often treated with chlorine to

Question # 4

Ozone depletion in stratosphere shall result in

Question # 5

NO and NO2gases in atmosphere are represented by

Question # 6

Photochemical smog is caused by

Question # 7

Spraying of DDT produces pollution of

Question # 8

Which is not a method for solid waste management

Question # 9

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

Question # 10

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

Question # 11

Biodegradable pollutant is

Question # 12

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

Question # 13

The amount of Si in the lithosphere is about

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

Sulphur dioxide affects

Question # 18

Chief source of water and soil pollution is

Question # 19

Which step is unnecessary for purification of water for drinking purposes

Question # 20

Chromium (VI) is highly toxic and can cause

Question # 21

Carbon monoxide is harmful to human beings as it

Question # 22

Result of ozone hole is

Question # 23

Minamata disease is due to pollution of

Question # 24

Which is not a component of environment

Question # 25

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

Question # 26

UV radiations bring about

Question # 27

Atomospheric pollutant is

Question # 28

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

Question # 29

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 # 30

The film forming components of paints are

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as
A. Environment
B. Hydrosphere
C. Pollutant
D. Biosphere
2 The region of earth capable of supporting life is
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
3 The toxic organic compounds and heavy metals and metalloids results in contamination of
A. Surface water
B. Ground water
C. Both surface and ground water
D. Neither surface nor ground waters
4 Ozone depletion in stratosphere shall result in
A. Forest fires
B. Increased incidence of skin cancer
C. Global warming
D. None of the above
5 What is the cause of water pollution
A. Chemical and bacterial contents in live stock
B. The spilled oil in rivers and ponds
C. Wide spread use of pesticides
D. All of the above
6 Spraying of DDT produces pollution of
A. Air
B. Air and water
C. Air and soil
D. Air, water and soil
7 Ozone hole refers to
A. Hole in ozone layers
B. Reduction in thickness of ozone layer in stratosphere
C. Reduction of thickness of ozone in troposphere
D. Increase concentration of ozone
8 Mottling of teeth is due to presence of an element in drinking water
A. Mercury
B. Fluorine
C. Boron
D. Chlorine
9 Ultraviolet radiation from sun causes a reaction that produces
A. Fluorides
B. Carbon monoxide
C. Sulphur dioxide
D. Ozone
10 Atmosphere of big/metropolitan cities is polluted most by
A. Automobile exhausts
B. Pesticide residue
C. Household waste
D. Radio-active fall out

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