X is formed when atmospheric oxygen dissociates in the presence of UV rays. Identify X.

Dioxygen

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Oxyzone

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Ozone

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Dihydrogen oxide

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Solution

The correct option is C
Ozone

When oxygen molecules absorb UV rays, they dissociate and into 2 separate atoms of oxygen. These atoms then combine with another molecule of oxygen to form ozone.

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The breakdown of CFCs in the presence of UV rays produce _______, which is the main cause for depletion of ozone layer.

Ozone is formed in the upper atmosphere from oxygen by the action of :

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