Environmental pollution Generix Content - Environmental pollution
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"Environmental pollution" question number distribution across years
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JAMB questions for "Chemistry :: Environmental pollution"
Q1

Smog usually occurs over cities which

A

are surrounded by water

B

are overpopulated

C

have very few plants

D

burn a lot of fossil fuels

E
Q2
The air around smelting industries is likely to contain
A
CO2, SO3 and H2
B
SO2, N2 and CO2
C
H2, SO2, CO2
D
H2S, CO and N2
E
Q3
The gas that is most dangerous pollutant to humans is
A
carbon (IV) oxide
B
nitrogen (II) oxide
C
hydrogen sulphide
D
sulphur (IV) oxide
E
Q4
Pollution of underground water by metal ions is very likely in a soil that has high
A
alkalinity
B
nitrate content
C
acidity
D
chloride content
E
Q5
A consequence of global warming is 
A
increased humidity
B
flooding
C
water pollution
D
air pollution
E
Q6
Farmlands affected by crude-oil spillage can be decontaminated by
A
using aerobic bacteria
B
pouring water on the affected area
C
burning off the oil from the area.
D
adding acidic solutions
E
Q7
The substance least considered as a source of environmental pollution is
A
lead compounds
B
organophosphorous compounds
C
silicate minerals
D
uranium
E
Q8
The pollutant from petroleum spillage in rivers and lakes can best be dispersed by
A
passing of ships through the area
B
pouring detergents
C
pouring organic solvents
D
evapouration
E
Q9
Environment pollution is worsened by the release from automobile exhausts of
A
heavy metals
B
water vapour
C
smoke
D
steam
E
Q10
A gas that is not associated with global warming is
A
CO2
B
SO3
C
CH4
D
H2
E
Q11
The air pollutant unknown in nature is
A
NO
B
CO
C
HCHO
D
DDT
E
Q12
The set of pollutants that is most likely to be produced when petrol is accidentally spilled on plastic materials and ignited is
A
CO, CO2 and SO2
B
CO, HCl and SO2
C
CO, CO2 and HCl
D
SO2, CO2 and HCl
E
Q13
Which of the following gases is the most dangerous pollutant?
A
Hydrogen sulphide
B
Carbon (IV) oxide
C
Sulphur (IV) oxide
D
Carbon (II) oxide
E
Q14
A major effect of oil pollution in coastal waters is the
A
destruction of marine life
B
desalination of the water
C
increase in the acidity of the water
D
detoxification of the water
E
Q15
The air around a petroleum refinery is most likely to contain
A
CO2, SO3 and N2O
B
CO2, CO and N2O
C
SO2, CO and NO2
D
PH3, H2O and CO2
E
Q16
The pollutants that are likely to be present in an industrial environment are
A
H2S, SO2 and oxides of nitrogen
B
NH3, HCI and CO
C
CO2, NH3 and H2S
D
dust NO and Cl2
E
Q17
Which of the following ions is a pollutant in drinking water even in trace amounts?
A
Ca2+
B
Hg2+
C
Mg2+
D
Fe2+
E
Q18
The gaseous pollutant sulphur (IV) oxide is most likely to be detected in fairly reasonable quantities in the area around a plant for the
A
extraction of aluminium from bauxite
B
production of magarine 
C
smelting of copper
D
production of chlorine from brine
E
Q19
An eruption polluted an environment with a gas suspected to be H2S, a poisionous  gas. A rescue team should spray the environment with
A
water
B
moist SO2
C
acidified KMnO4
D
water, acidified KMnO4 and oxygen
E
Q20
Oil spillage in ponds and creeks can be cleaned up by
A
burning off the oil layer.
B
spraying with detergent.
C
dispersal with compressed air.
D
spraying with hot water.
E
Q21
The exhaust fumes from a garage in a place that uses petrol of high sulphur content are bound to contain
A
CO and SO3
B
CO and SO2
C
CO, SO2 and SO3
D
CO and H2S
E
Q22
Oxygen-demanding wastes are considered to be a water pollutant because they
A
deplete oxygen which is necessary for the survival of aquatic organisms
B
increase oxygen which is necessary for the survival of aquatic organisms
C
increase their gasous substances which are necessary for the survival of aquatic organisms
D
deplete other gasous species which are necessary for the survival of aquatic organisms
E
Q23
If the ONLY pollutants found in the atmosphere over a city are oxides of nitrogen, suspended lead compounds, carbon monoxide and high levels of methane, the probable source(s) of the pollution must be
A
automobile exhaust and biological decomposition
B
combustion of coal and automobile exhaust
C
biological decomposition only
D
combustion of coal, automobile exhaust and biological decomposition
E
combustion of coal and biological decomposition