Manipal Medical Manipal Medical Solved Paper-2015

  • question_answer
    \[CFC{{l}_{3}}\] is responsible for the decomposition of ozone to form which of the following reacts with ozone to form oxygen.

    A) Cl                                               

    B) \[C{{l}^{-}}\]

    C) \[C{{l}_{2}}\]                                        

    D) \[{{F}^{-}}\]

    Correct Answer: A

    Solution :

    \[CFC{{l}_{3}}\xrightarrow{hv}\overset{\bullet }{\mathop{Cl}}\,+\overset{\bullet }{\mathop{CFC{{l}_{2}}}}\,\] Hence, \[\overset{\bullet }{\mathop{Cl}}\,\]reacts with \[{{O}_{3}}\]through a chain reaction as follows: \[\overset{\bullet }{\mathop{Cl}}\,\,+\,{{O}_{3}}\to Cl{{O}^{\bullet }}+{{O}_{2}}\] \[\overset{\bullet }{\mathop{Cl}}\,\,+\,O\to C{{l}^{\bullet }}+{{O}_{2}}\]


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