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Environmental Chemistry - 3
1.
The purpose of _____________ is to conserve sources such as raw material and energy.
a) Organic
b) Recycling
c) Rotary
d) Volume
2.
The recycling of _____________ is done by reprocessing, depolymerization or transformation..
a) Aeration
b) NOx
c) Nitrogen dioxide
d) Plastics
3.
The ___________ is a process in which the used plastics are converted back into their original components.
a) Polycyclic aromatics
b) Depolymerization
c) Carbon monoxide
d) Reducing smog
4.
Atmosphere contain O
2
a) 21%
b) 0.9%
c) 78%
d) 0.03%
5.
The gases in the atmosphere absorb most of
a) K gas
b) Cosmic rays
c) Na gas
d) Li gas
6.
2NO + O
2
a) N
2
O
3
b) N
2
+O
2
c) 2NO
2
d) HNO
2
+ O
2
7.
Air is polluted with SO
2
due to
a) Ignition
b) Hydrogenation
c) Combustion
d) Evaporation
8.
SO
2
+1/2O
2
+H
2
O Hydrocarbon, smoke
a) H
2
SO
3
b) H
2
S
2
O
7
c) H
2
SO
4
d) H
2
S+H
2
O
9.
The over all result of photochemical smog in afternoon is built up of
a) Activating agent
b) Nevtrolization agent
c) Oxidizing agent
d) Reducing agent
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