The basic component(s) of smog is (are)
Peroxy Acetyl Nitrate (PAN)
Peroxy Benzoyl Nitrate (PBN)
All of these
As we have learnt,
Photochemical smog formation
Emission of nitrogen oxides and hydrocarbons from automobiles exhausts and solar energy lead to a chain of reactions. and
react with unburnt hydrocarbons to produce formaldehyde, acrolein, peroxy-acetyl nitrates (PAN) and Peroxy Benzoyl Nitrate (PBN).
Thus, PAN, PBN and O3 all are components of smog
Hence, the correct answer is Option (4)