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B
Ozone
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C
PBN
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D
AlI of the above
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Solution
The correct option is D AlI of the above
Smog is a type of severe air pollution.
The pollutants in photochemical smog are formed in a complex process that begins with the emission of nitrogen oxides and volatile organic compounds (VOCs) from automobile tailpipes.
These combine with both moisture in the air and oxygen to form ozone, and further reactions produce a variety of organic gases, including peroxyacetyl nitrates (PANs), which cause severe eye irritation in high concentrations.
Hence, The basic component of the smog may be PAN, Ozone and PBN.