ICSE Class 9 Answered
Expert Answer
It causes reduction in ozone layer that protects us from harmful ultraviolet rays (UV radiations) of the Sun.
The chlorofluorocarbons are decomposed by the ultraviolet rays to highly reactive chlorine which is produced in the atomic form.
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(Free radical) |
The free radical [Cl] reacts with ozone to form chlorine monoxide.
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Cl + O3 → ClO + O2 (Chlorine monoxide) |
This causes depletion of the ozone layer. Chlorine monoxide then reacts with atomic oxygen to produce more chlorine free radicals.
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ClO + O → Cl + O2 (Free radical) |
This free radical destroys ozone, and the process continues depleting the ozone layer.
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