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Environmental Chemistry | TNPSC Questions with Answers [2026]
ENVIRONMENTAL CHEMISTRY
1/0
The main constituents of photochemical smog are
Oxides of nitrogen, CO and SO
2
_{2}
2
Oxides of nitrogen, CO and H
2
_{2}
2
S
Oxides of nitrogen, Ozone and hydrocarbons
Oxides of nitrogen, SO
2
_{2}
2
and hydrocarbons
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