A) \[Cl\overset{\bullet }{\mathop{O}}\,(g)+O(g)\,\,\to \,\,\overset{\bullet }{\mathop{Cl}}\,(g)+{{O}_{2}}(g)\]
B) \[C{{F}_{2}}C{{l}_{2}}(g)\,\,\,\xrightarrow{uv}\,\,\overset{\bullet }{\mathop{Cl}}\,(g)+\overset{\bullet }{\mathop{C}}\,{{F}_{2}}Cl(g)\]
C) \[\,C{{H}_{4}}+2{{O}_{3}}\to 3C{{H}_{2}}=O+3\,\,{{H}_{2}}O\]
D) \[HOCl(g)\xrightarrow{hv}\,\,\overset{\bullet }{\mathop{OH}}\,\,(g)+\overset{\bullet }{\mathop{Cl\,}}\,(g)\]
Correct Answer: C
Solution :
\[Cl\overset{\bullet }{\mathop{O}}\,(g)+O(g)\,\,\to \overset{\bullet }{\mathop{Cl}}\,(g)\,\,+\,\,{{O}_{2}}(g)\] \[C{{F}_{2}}C{{l}_{2}}(g)\,\xrightarrow{uv}\,\overset{\bullet }{\mathop{Cl}}\,(g)\,+\,\overset{\bullet }{\mathop{C{{F}_{2}}}}\,Cl(g)\] \[HOC{{l}_{2}}(g)\,\xrightarrow{hv}\,\overset{\bullet }{\mathop{OH}}\,(g)\,+\,\overset{\bullet }{\mathop{Cl}}\,(g)\] All the above three reaction are involved in the ozone layer deplection mechanism. \[C{{H}_{4}}+2{{O}_{3}}\to 3C{{H}_{2}}=O+3{{H}_{2}}O\] [not involved]
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