Question

Which one of these is not true for the control of photochemical smog?

• A. Control the primary precursors of photochemical smog such as $N{O}_2$ and hydrocarbons
• B. Control the secondary precursors such as ozone and PAN
• C. By decreasing the amount of $C{O}_2$ in atmosphere
• D. Using catalytic converter in automobiles

Answer 1

The correct option is C By decreasing the amount of $C{O}_2$ in atmosphere

Many techniques are used to control or reduce the formation of photochemical smog. If we control the primary precursors of photochemical smog, such as $N{O}_2$ and hydrocarbons, the secondary precursors such as ozone and PAN, the photochemical smog will automatically be reduced. Usually catalytic converters are used in the automobiles, which prevent the release of nitrogen oxide and hydrocarbons to the atmosphere.