Question

Photochemical smog formed in congested metropolitan cities mainly consists of

• A. Ozone, peroxyacetyl nitrate and Nox
• B. Smoke, peroxyacetyl nitrate and $S{O}_2$
• C. Hydrocarbons, $S{O}_2$ and $C{O}_2$
• D. Hydrocarbons, ozone and Sox

Answer 1

The correct option is B Smoke, peroxyacetyl nitrate and $S{O}_2$

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 $S{O}_2$.