12th Grade > Chemistry
ENVIRONMENTAL CHEMISTRY MCQs
Total Questions : 40
| Page 2 of 4 pages
Answer: Option A. -> Bacteria and other organisms
:
A
Pathogens are bacteria and other organisms which enter into water from domestic sewage and animal excreta.
:
A
Pathogens are bacteria and other organisms which enter into water from domestic sewage and animal excreta.
Answer: Option D. -> Non-biodegradable pollutant
:
D
DDT is a non-biodegradable pollutant
:
D
DDT is a non-biodegradable pollutant
Answer: Option C. -> methyl isocyanate
:
C
The poisonous gas released during Bhopal gas tragedy was MIC- methylisocyanate
:
C
The poisonous gas released during Bhopal gas tragedy was MIC- methylisocyanate
Answer: Option A. -> Algae
:
A
Algae is a viable particulate
:
A
Algae is a viable particulate
Answer: Option D. -> all of the above
:
D
All of these are sources of soil and water pollution.
:
D
All of these are sources of soil and water pollution.
Answer: Option B. -> carbon monoxide
:
B
Incomplete combustion of petrol or diesel oil in automobile engines produces CO only.
:
B
Incomplete combustion of petrol or diesel oil in automobile engines produces CO only.
Answer: Option B. -> methane
:
B
Methane is the most abundant hydrocarbonpollutant .
:
B
Methane is the most abundant hydrocarbonpollutant .
Answer: Option D. -> Oil slick in sea water increases D.O. value.
:
D
Oil slick (layer) in sea water decreases D.O. value
:
D
Oil slick (layer) in sea water decreases D.O. value
Answer: Option D. -> Phenols
:
D
Phenolis a secondary pollutant
:
D
Phenolis a secondary pollutant
Answer: Option C. -> CO
:
C
Carbon-dioxide, carbon monoxide, oxides of sulphur and nitrogen are air pollutants which affect our health and environment badly.
Carbon dioxide causes global warming. Oxides of nitrogen and Sulphur causes acid rain.
Carbon-monoxide is a major air pollutant. It combines with hemoglobin in the human body and forms carboxyhemoglobin which reduces the oxygen absorption capacity of blood.
:
C
Carbon-dioxide, carbon monoxide, oxides of sulphur and nitrogen are air pollutants which affect our health and environment badly.
Carbon dioxide causes global warming. Oxides of nitrogen and Sulphur causes acid rain.
Carbon-monoxide is a major air pollutant. It combines with hemoglobin in the human body and forms carboxyhemoglobin which reduces the oxygen absorption capacity of blood.
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