Question

Which of the following is a controlling measures of photochemical smog?

• A. Spraying free radicals generating compounds into the atmosphere
• B. Using catalytic converters in automobiles
• C. Plantation of plants like pinus, pyrus
• D. All of the above

Answer 1

The correct option is D All of the above

Controlling measures of photochemical smog:
1. Spraying certain compound into the atmosphere, which generate free radicals and combine with the free radicals which are responsible for the formation of the components of photochemical smog.
2. Using catalytic converters in automobiles, which prevent the release of $NO$ and hydrocarbons to the atmosphere.
3. By the plantation of certain plants like pinus, juniparus, quercus, pyrus and vitis which metabolise $NO$ and thus help control the formation of photochemical smog.