Photochemical smog consists of
(A) `SO_(2),PAN` and smoke
(B) `SO_(3),PAN` and oxides of nitrogen
(C) `SO_(2),CO_(2)` and hydrocarbon
(D) `O_(3),SO_(2)` and hydrocarbon

Photochemical smog consists of excessive amount of X, in addition to aldehydes, ketones, peroxyacetyl nitrate (PAN), and so forthe X is:

Photochemical smog consists of excessive amount of X, in addition to aldehydes, ketones, peroxyacetyl nitrate (PAN), and so forth X is:

The formation of SO_(3) from SO_(2) and O_(2) takes place in the following steps : (i) SO_(2)+2NO_(2) to 2SO_(3)+2NO (ii) 2NO +O_(2) to 2NO_(2)

Identify the correct statements., (i) Winter smog is reducing in nature due to presence of particular carbon and SO_(2) (ii)The pollutant obtained from emission tubes of diesel engines is benzopyrene. (iii) Photochemical smog is made up of PAN , O_(3) and oxides of nitrogen (iv) CFCs are stable in troposphere and act as pollutants in stratosphere

Formation of SO_(3) by SO_(2) and O_(2) is favoured by :-