Question

1)
Describe how Ozone layer is formed?
2)Name the chemical responsible for depletion of ozone layer?​

Answer 1

Answer:

1)Stratospheric ozone is formed naturally by chemical reactions involving solar ultraviolet radiation (sunlight) and oxygen molecules, which make up 21% of the atmosphere. In the first step, solar ultraviolet radiation breaks apart one oxygen molecule (O2) to produce two oxygen atoms (2 O) (see Figure Q2-1).

2)Ozone depleting substances are chemicals that destroy the earth's protective ozone layer. They include: chlorofluorocarbons (CFCs) halon.

Explanation:

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Answer 2

Answer:

Hi,

1) when UV rays fall on an oxygen molecule it splits it

O²(g) → O +O

Now Both of them combine with other oxgen molecule seperately,

O(g)+O²(g)→O³(g)

2) Cholofluro carbon

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