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Online Tests
PPSC Chemistry Part V Environmental Chemistry Online Test MCQs With Answers
Question # 1
Permanent hardness of water is due to.
Choose an answer
Sulphate of Ca
Chloride of Ca
Sulphate of Mg
All above
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Question # 2
Which of the following substance act as photochemical oxidant
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Ozone
NOx
peroxyacetyl nitrate
All above
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Question # 3
Which among the following is secondary pollutant.
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CO
CO2
PAN
Aerosol
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Question # 4
Classical smog occurs in place of.
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Excess concentration of SO2
Low temperature
High temperature
Excess concentration of ammonia
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Question # 5
Which of the following metal acts as pollutant.
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Hg
Pb
Zn
Ni
All above
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Question # 6
The expected specific waste of paper and allied products industry is.
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Chemicals
Paper and fibre residues
Links
All above
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Question # 7
Which of the following substance has been advocated as fuel of future.
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O2
N2
H2
H2O
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Question # 8
The range of sound pressure which is painful is as
Choose an answer
130-140 dB
100 - 120 dB
90 - 80 dB
All above
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Question # 9
Result of ozone hole is.
Choose an answer
Acid rain
Global warming
Increased amount of CO2
Greater exposure of earth to U.V. rays.
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Question # 10
Which of the following pollutant results from combustion of fossil fuels.
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SO2
NO2
CO
All above
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Question # 11
Domestic waste mostly constitutes
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Non biodegradable pollution
Biodegradable pollution
Effluents
Air pollution
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Question # 12
Which of the following process is not physical in nature.
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Mixing
Flocculation
Sedimentation
Activated sludge process
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Question # 13
Which of the following gas form weakly acidic sulphurous acid
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SO2
SO3
NO2
NO
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Question # 14
Which of the following acids acts as acid waste from coal mines.
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HCl
HNO3
CH3COOH
H3PO4
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Question # 15
Commercial incinerators produce.
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Smoke
CO
NOx
All above
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Question # 16
UV radiation from the sun causes a reaction in the atmosphere that leads to production
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Fluorides
Carbon monoxide
Sulphur dioxide
Ozone
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Question # 17
Which of the following pollutant is generated from combustion of fuel.
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Smoke
SO2
CO2
Metallic oxides
All above
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Question # 18
Photochemical among is related to pollution of
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Air
Water
Soil
All of the above
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Question # 19
Which of the following statement is not correct with respect to radioactive pollutnats.
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Carcinoma and breast cancer
Leukemia
Increases biological immune system
Somatic and generic disorder
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Question # 20
Which of the following to non -auditory effect of noise on human body.
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Changes in the Vascular tone
Increase in the blood pressure
Wakening of the coloured vision
All above
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Question # 21
Which of the following pollutant is not secondary pollutnat.
Choose an answer
SO3
NO2
SO2
Ozone
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