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प्रश्न
On the basis of chemical reactions involved, explain how do CFC’s cause depletion of ozone layer in stratosphere?
उत्तर
In the presence of uv radiation, CFC’s break up into chlorine free radical.
Chlorine radical is regenerated in the course of reaction. Due to this continuous attack of Cl thinning of Ozone layer takes place which leads to formation of the ozone hole.
It is estimated that for every reactive chlorine atom generated in the stratosphere 1,00,000 molecules of ozone are depleted.
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संबंधित प्रश्न
What are the reactions involved for ozone layer depletion in the stratosphere?
Ozone depletion will cause ______.
Assertion (A): Oxygen plays a key role in the troposphere.
Reason (R): Troposphere is not responsible for all biological activities.
What do you mean by ozone hole?
Ozone is a toxic gas and is a strong oxidising agent even then its presence in the stratosphere is very important. Explain what would happen if ozone from this region is completely removed?
On the basis of chemical reactions involved, explain how do chlorofluorocarbons cause thinning of ozone layer in stratosphere.
Ozone is a gas heavier than air. Why does ozone layer not settle down near the earth?
The statement that is not true about ozone is:
Polar stratospheric clouds facilitate the formation of ______.
