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

Minamata disease is due to pollution of

Question # 2

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

Question # 3

Ecosystem is a smaller unit of

Question # 4

Which is not the affect of polluted air on environment

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Which is not a method for solid waste management

Question # 9

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

Question # 10

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

Question # 11

The amount of Si in the lithosphere is about

Question # 12

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 # 13

The film forming components of paints are

Question # 14

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

Question # 15

Value of chemical oxygen demand (COD) is a measure of chemically oxidizable matter in water. Which value of COD will indicate more polluted water

Question # 16

BOD is

Question # 17

In incinerating the waste is burnt at

Question # 18

SO2Makes ______ acid rains

Question # 19

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

Question # 20

Soil remediation means

Question # 21

Most hazardous metal pollutant of automobile exhaust is

Question # 22

Drained sewage has B.O.D

Question # 23

SO2and NO2produce pollution by increasing

Question # 24

Chromium (VI) is highly toxic and can cause

Question # 25

Ultraviolet radiation from sun causes a reaction that produces

Question # 26

Atomospheric pollutant is

Question # 27

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

Question # 28

Acid rain is due to increase in atmospheric concentration of

Question # 29

Which factor is helping to reduce the environmental pollution

Question # 30

Water is often treated with chlorine to

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 In purification of potable water the coagulant used is
A. Nickle sulpahte
B. Copper sulpahte
C. Barium sulpahte
D. Alum
2 Carbon monoxide is pollutant as it
A. Inactivates nerves
B. Inhibits glycolysis
C. Combines with oxygen
D. Combines with hemoglobin
3 The region of earth capable of supporting life is
A. Hydrosphere
B. Lithosphere
C. Biosphere
D. Atmosphere
4 Ecology is a science of environment and deals specially with
A. Stratosphere
B. Biosphere
C. Lithosphere
D. Hydrosphere
5 Burning of fossil fuels is the main source of pollution
A. Nitrogen oxide
B. Nitric oxide
C. Nitrous oxide
D. Sulphur dioxide
6 Fungicides are the pesticides which
A. Control the growth of fungus
B. Kill insects
C. Kill plants
D. Kill herbs
7 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
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 The amount of Si in the lithosphere is about
A. 27.72%
B. 30.35%
C. 35.30%
D. 40.21%
10 In the atmosphere, O2is about
A. 10%
B. 15%
C. 21%
D. 25%

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