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Which of the following chemical, harmful to ozone, is released by chlorofluorocarbon?

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Which of the following chemical, harmful to ozone, is released by chlorofluorocarbon?

(a) Sulphur dioxide

(b) Fluorine

(c) Chlorine

(d) Nitrogen dioxide

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Correct answer: (c) Chlorine

Explanation:

\(CF_2Cl_2 \overset{hv}\rightarrow \) \(CF_2Cl + \dot{C}l\) 

\(\dot{C}l + O_3 \rightarrow Cl \dot{O} + O_2\)

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