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Question
Chemistry
Which of the following chemicals is not involved in photochemical smog formation?
Q. Which of the following chemicals is not involved in photochemical smog formation?
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TS EAMCET 2018
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A
S
O
2
B
O
3
C
N
O
2
D
NO
Solution:
Photochemical smog, reffer to summer smog reaction of sunlight, nitrogen oxides and volatile organic compounds in atmosphere.
(i)
NO
+
O
2
⟶
N
O
2
(ii)
N
O
2
(
g
)
⟶
h
v
NO
(
g
)
+
[
O
]
(iii)
[
O
]
+
O
2
⟶
O
3
(iv)
O
3
+
NO
⟶
N
O
2
+
O
2
Nitrogen oxides
2
N
O
2
+
Water
H
2
O
→
Nitrous acid
H
N
O
2
+
Nitric acid
H
N
O
3