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Chemistry
Chemistry
Problem
The smog is essentially caused by the presence of: a.
O
3
\text{O}_3
O
3
and
N
2
\text{N}_2
N
2
b.
O
2
\text{O}_2
O
2
and
N
2
\text{N}_2
N
2
c. Oxides of sulphur and
N
2
\text{N}_2
N
2
d.
O
2
\text{O}_2
O
2
and
O
3
\text{O}_3
O
3
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