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

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

Question # 2

Which causes water pollution?

Question # 3

Exposure to CO results in

Question # 4

Increasing skin cancer and high mutation rate are due to

Question # 5

A single chlorine free radical can destroy how many ozone molecules

Question # 6

Atomospheric pollutant is

Question # 7

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

Question # 8

Which one of the following is not air pollutant gas

Question # 9

Which one is not a pollutant normally?

Question # 10

SO2and NO2produce pollution by increasing

Question # 11

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 # 12

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

Question # 13

Which is not a component of environment

Question # 14

Which is not a method for solid waste management

Question # 15

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

Question # 16

Polycyolic aromatic hydrocarbons are taught to be

Question # 17

Ecology is a science of environment and deals specially with

Question # 18

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

Question # 19

The region of earth capable of supporting life is

Question # 20

Which gasses are produced from landfills

Question # 21

As it passes into food chain, the concentration of DDT

Question # 22

In the atmosphere, CO2is about

Question # 23

UV radiations bring about

Question # 24

Mottling of teeth is due to presence of an element in drinking water

Question # 25

Chromium (VI) is highly toxic and can cause

Question # 26

Carbon monoxide is pollutant as it

Question # 27

Fungicides are the pesticides which

Question # 28

Water is often treated with chlorine to

Question # 29

Carbon monoxide is harmful to human beings as it

Question # 30

Domestic waste mostly constitutes

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Which causes water pollution?
A. Smoke/fly ash
B. Automobile exhausts
C. Aeroplnes
D. 2,4-D and pesticides
2 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
3 Cyclone collector is used for minimizing
A. Radioactive pollution
B. Air pollution
C. Noise pollution
D. Water pollution
4 Spraying of DDT produces pollution of
A. Air
B. Air and water
C. Air and soil
D. Air, water and soil
5 Phosphate pollution is caused by
A. Weathering of phosphate rocks only
B. Agricultural fertilizers
C. Phosphate rocks and sewage
D. Sewage and agricultural fertilizers
6 BOD is
A. Biological oxygen deficit
B. Biosphere oxygen demand
C. Biological oxygen demand
D. None of the above
7 Which heavy metals do not have any safe limits
A. As
B. Hg
C. Cr
D. All of these
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 When chlorofluoro carbon are subjected to U.V. they form
A. Cations
B. Anions
C. Free radicals
D. None of these
10 Environmental pollution affects
A. Biotic components
B. Plants only
C. Man only
D. Biotic and abiotic components of environment

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