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

Chloroflurocarbon releases a chemical harmful to ozone

Question # 2

Air pollution is not caused by

Question # 3

SO2Makes ______ acid rains

Question # 4

Which gasses are produced from landfills

Question # 5

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

Question # 6

Oceans cove ______ percent of the surface of the earth

Question # 7

Chief source of water and soil pollution is

Question # 8

Sulphur dioxide affects

Question # 9

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

Question # 10

The pH range of the acid rain is

Question # 11

Depletion of ozone layer is due to

Question # 12

Acid rains are produced by

Question # 13

As it passes into food chain, the concentration of DDT

Question # 14

When rain is accompanied by a thunderstorm, the collected rain water will have a pH value

Question # 15

NO and NO2gases in atmosphere are represented by

Question # 16

Carbon monoxide is harmful to human beings as it

Question # 17

The normal amount of overhead ozone is about

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

What is the cause of water pollution

Question # 22

Which factor is helping to reduce the environmental pollution

Question # 23

Burning of fossil fuels is the main source of pollution

Question # 24

Water pollution is mainly due to

Question # 25

Classical smog occurs in palces of

Question # 26

In the atmosphere, O2is about

Question # 27

Biodegradable pollutant is

Question # 28

Minamata disease is due to pollution of

Question # 29

SO2and NO2produce pollution by increasing

Question # 30

Increasing skin cancer and high mutation rate are due to

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 Cyclone collector is used for minimizing
A. Radioactive pollution
B. Air pollution
C. Noise pollution
D. Water pollution
2 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
3 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
4 Which of the following human activities are contaminating surface and ground waters
A. Pesticides
B. Septic tanks
C. Petroleum and natural gas production
D. All of these
5 Result of ozone hole is
A. Green house effect
B. Global warming
C. Acid rain
D. UV rays reach the earth
6 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2
7 In the atmosphere, O2is about
A. 10%
B. 15%
C. 21%
D. 25%
8 Carbon monoxide is pollutant as it
A. Inactivates nerves
B. Inhibits glycolysis
C. Combines with oxygen
D. Combines with hemoglobin
9 Acid rains are produced by
A. Excess NO2and SO2 from burining fossil fuels
B. Excess production of NH3by industry and coal gas
C. Excess release of carbon monoxide by incomplete combustion
D. Excess formation of CO2by combustion and animal respiration
10 Which of the following forms a toxic substance in blood by combing with hemoglobin?
A. Carbon dioxide
B. Carbon monoxide
C. Oxygen
D. Methane

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