Question

Depletion of ozone molecules in the stratosphere is due to
a. Chlorine compound
b. Fluorine compound
c. Halogen compound
d. None of these​
​

Answer 1

Answer:

Depletion of ozone molecules in the stratosphere is due to c. Halogen compound

Explanation:

• The main cause of ozone depletion and the ozone hole is manufactured chemicals, especially manufactured halocarbon refrigerants, solvents, propellants, and foam-blowing agents (CFC, halons), referred to as ozone-depleting substances (ODS).
• These compounds are transported into the stratosphere by turbulent mixing after being emitted from the surface, mixing much faster than the molecules can settle.
• Once in the stratosphere, they release halogen atoms through photodissociation, which catalyze the breakdown of ozone(O₃) into oxygen (O₂).
• Both types of ozone depletion were observed to increase as emissions of halocarbons increased.

Therefore, halogen compounds cause the depletion of ozone molecules in the stratosphere.

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Answer 2

Depletion of ozone molecules in the stratosphere is due to a) Chlorine compound

Earth consists of many layers and the ozone layer is one layer in it. The ozone layer protects the earth from harmful radiation or UV rays from the sun. This layer consists of ozone molecules to help fight the rays.

• The chlorine particles destroy these ozone molecules in the layer.
• When the chlorine & bromine atoms come in contact with the ozone molecules, they are destroyed.
• This way the ozone layer in the stratosphere depletes the ozone layer. Hence these particles are known as Ozone Depleting Substances (ODS).
• Along with these particles other chemicals highly contribute to ozone molecule depletion.

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