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

Soil salinity can be measured by

Question # 2

Exposure to CO results in

Question # 3

Air pollution is not caused by

Question # 4

Ozone in most of the tropical regions acts as a pollutant and causes

Question # 5

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

Question # 6

In the atmosphere, CO2is about

Question # 7

Which of the following waste material is not recycled for use again

Question # 8

Which is not the affect of polluted air on environment

Question # 9

Which is not a method for solid waste management

Question # 10

B.O.D is connected with

Question # 11

Which step is unnecessary for purification of water for drinking purposes

Question # 12

Potable water is considered to be

Question # 13

A pollutant affects

Question # 14

Increasing skin cancer and high mutation rate are due to

Question # 15

Sulphur dioxide affects

Question # 16

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

Question # 17

Pollution is

Question # 18

In incinerating the waste is burnt at

Question # 19

Fungicides are the pesticides which

Question # 20

Which gas is not a constituent of atmosphere

Question # 21

Ozone hole is maximum over

Question # 22

Which causes water pollution?

Question # 23

Oceans cove ______ percent of the surface of the earth

Question # 24

Ozone hole refers to

Question # 25

The largest item which is recycled is

Question # 26

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

Question # 27

A single chlorine free radical can destroy how many ozone molecules

Question # 28

The film forming components of paints are

Question # 29

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

Question # 30

Ozone depletion in stratosphere shall result in

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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 Which heavy metals do not have any safe limits
A. As
B. Hg
C. Cr
D. All of these
3 Which one is the major reason for pollution in high cities?
A. Fossil fuel
B. Acid rain
C. Heat dispersion
D. None of the above
4 Potable water is considered to be
A. Safe for human consumption
B. Not safe for human consumption
C. The surface water
D. The ground water
5 Which is not the affect of polluted air on environment
A. Acid rain
B. Smog
C. Ozone
D. Global warming
6 Which of the following waste material is not recycled for use again
A. Paper
B. Plastic
C. Hides of animals
D. Glass
7 Mottling of teeth is due to presence of an element in drinking water
A. Mercury
B. Fluorine
C. Boron
D. Chlorine
8 Chief source of water and soil pollution is
A. Mining
B. Thermal power plant
C. Agro-industry
D. All the above
9 Spraying of DDT produces pollution of
A. Air
B. Air and water
C. Air and soil
D. Air, water and soil
10 Which gasses are produced from landfills
A. NH3
B. H2S
C. N2
D. All of these

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