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Online Tests
Chemistry Fsc Part 2 Chapter 16 Online Test MCQs With Answers
Question # 1
How much fresh water is used for domestic purpose
Choose an answer
8%
23%
69%
100%
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Question # 2
Ozone is mostly produced in
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Tropical region
North polar region
South polar region
Thermosphere zone of atmosphere
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Question # 3
Ecosystem is a smaller unit of
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lithospher
hydroshper
atmosphere
biosphere
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Question # 4
Which one of the following is secondary pollutant of atmosphere.
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CO
NO2
SO2
H2SO4
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Question # 5
Peroxyacetyl nitrate is an irritant to humab beings and it affects
Choose an answer
Eyes
Ears
Stomach
Nose
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Question # 6
Fungicides are the pesticides which
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Control the growth of fungus
Kill insects
Kill plants
Kill herbs
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Question # 7
On earth polar ice caps and glacier contains H2O
Choose an answer
1%
2%
3%
10%
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Question # 8
A quality of raw water is improved by
Choose an answer
Reduction
Aeration
Dehydration
Incineration
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Question # 9
The pH of unpolluted rain water should be
Choose an answer
5.00
5.60
6.50
7.00
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Question # 10
The main pollutant of leather tanneries in the waste water is due to
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Lead
Chromium VI
Copper
Chromium III
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Question # 11
In purification of potable water the coagulant used is
Choose an answer
Nickel sulphate
Copper sulphate
Barium sulphate
Alum
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Question # 12
The smog which have high contents of SO2 in it, is called.
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Reducing smog
Oxidizing smog
Natural smog
Neutral smog
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Question # 13
The residence time of NO is
Choose an answer
Few hours
1 day
3 days
4 days
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Question # 14
Whcih water will be considered as polluted water.
Choose an answer
High value of COD
Low value of COD
High value of DO
Low value of BOD
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Question # 15
A single chloride free radical can destroy how many ozone molecules
Choose an answer
100
100,000
100,00
unlimited
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Question # 16
Which one is primary pollutant.
Choose an answer
Peroxyacetyl nitrate
Sulphuric acid
Carbonic acid
Carbon monoxide
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Question # 17
Acid rain fist of all was observed by
Choose an answer
Augus Smith
Robert Hook
Mosley
Watson
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Question # 18
Which one of the followings is not a pollutant.
Choose an answer
CO2
NO2
CO
SO2
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