Question

Photochemical smog is also called as
A)Callfomla type smog
B)Tokyo type smog
C)Los Angeles type smog
D)New York type smog

Answer 1

Hint: The air pollution comprises high levels of ozone and semi visibility, found in those cities which are situated in the valley. For the formation of various gases like smog, oxides of nitrogen, hydrocarbons, and light are responsible.

Complete answer:
-Photochemical smog is called by another name as the Los Angeles smog. Smog is a combination of smoke and fog and the term smog was first used in London in 1900.
-Combustion of fuels like coal And many air pollutants are responsible for the smoke in London. Smoke in Los Angeles is caused due to many chemicals that require sunlight for the reactions.
-Chemicals require sunlight for the reaction that is sun plays a very important role in the chemical reaction. This chemical reaction is called photochemical reaction and the smoke which is formed by this photochemical reaction is known as photochemical smog.
-For the formation of smoke there are four things that are required. They are oxygen, nitrogen oxides of Hydrocarbons, and ultraviolet light.

Additional Information: -Various cycle of reactions is required for the formation of smoke. In the photochemical cycle, the Nitrogen dioxide molecule is hit by the sunlight in the atmosphere.
-As the sunlight hits the molecule. The molecule is divided into nitrogen monoxide and a single oxygen atom.
- after that, the single oxygen atom bonded with the oxygen molecule. This makes Ozone molecules.
-Ozone is a very harmful substance for the formation of smoke. Other substances that order chemicals that are needed for the smoke formation are nitrogen monoxide, Nitrogen dioxide, and hydrocarbons.
-All these Chemicals are the results of the product of combustion.
So, the correct answer is, "Los Angeles type smog".

Note: Smog- These are the pollutants of air which is formed from nitrogen oxide and different chemicals which are activated by sunlight.
Photochemical- Chemicals that require the energy from the Sun for their reactions.
UV light- These are the short high energy radiations from the Sun.
Hydrocarbon-a compound containing hydrogen and carbon atoms.