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

In the atmosphere, O2is about

Question # 3

Ultraviolet radiation from sun causes a reaction that produces

Question # 4

Carbon monoxide is pollutant as it

Question # 5

In incinerating the waste is burnt at

Question # 6

Increased asthmatic attacks in certain seasons are related to

Question # 7

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

Question # 8

Chromium (VI) is highly toxic and can cause

Question # 9

Photochemical smog is caused by

Question # 10

Swage water is purified by

Question # 11

Minamata disease is due to pollution of

Question # 12

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

Question # 13

Domestic waste mostly constitutes

Question # 14

Classical smog occurs in palces of

Question # 15

Chromium (VI) is highly toxic and can cause

Question # 16

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

Question # 17

Depletion of ozone layer is due to

Question # 18

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

Question # 19

NO and NO2gases in atmosphere are represented by

Question # 20

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

Question # 21

Chloroflurocarbon releases a chemical harmful to ozone

Question # 22

Which heavy metals do not have any safe limits

Question # 23

Atomospheric pollutant is

Question # 24

The % of CO2is the atmosphere is

Question # 25

UV radiations bring about

Question # 26

Biodegradable pollutant is

Question # 27

Air pollution is not caused by

Question # 28

Potable water is considered to be

Question # 29

Shahi Qilla may be destroyed by

Question # 30

Spraying of DDT produces pollution of

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 SO2and NO2produce pollution by increasing
A. Alkalinity
B. Acidity
C. Neutrality
D. Buffer action
2 Which is not the affect of polluted air on environment
A. Acid rain
B. Smog
C. Ozone
D. Global warming
3 Increased asthmatic attacks in certain seasons are related to
A. Inhalation of seasonal pollen
B. Eating of seasonal vegetables
C. Low temperature
D. Wet and dry environment
4 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
A. Blow air
B. Add Na2CO3
C. Use a specially made sorbent having flouring trapped in it
D. Use a sorbent having Al2O3trapped in it
5 Eutrophication causes reduction in
A. Dissolved hydrogen
B. Dissolved oxygen
C. Dissolved salts
D. All the above
6 Cyclone collector is used for minimizing
A. Radioactive pollution
B. Air pollution
C. Noise pollution
D. Water pollution
7 UV radiations bring about
A. Skin cancer
B. Mouth cancer
C. Lung cancer
D. Liver cancer
8 Ultraviolet radiation from sun causes a reaction that produces
A. Fluorides
B. Carbon monoxide
C. Sulphur dioxide
D. Ozone
9 Burning of fossil fuels is the main source of pollution
A. Nitrogen oxide
B. Nitric oxide
C. Nitrous oxide
D. Sulphur dioxide
10 Environmental pollution affects
A. Biotic components
B. Plants only
C. Man only
D. Biotic and abiotic components of environment

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