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Question

Photochemical smog formed in congested metropolitan cities mainly consists of

A
Ozone, peroxyacetyl nitrate and Nox
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B
Smoke, peroxyacetyl nitrate and SO2
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C
Hydrocarbons, SO2 and CO2
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D
Hydrocarbons, ozone and Sox
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Solution

The correct option is B Smoke, peroxyacetyl nitrate and SO2
Photochemical smog is defined as haze in the atmosphere accompanied by high levels of ozone and nitrogen oxides, caused by the action of sunlight on pollutants. Photochemical smog consists of smoke, peroxyacetyl nitrate and SO2.

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