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CMC Medical CMC-Medical Ludhiana Solved Paper-2007

  • question_answer
    Chlorine acts as a bleaching agent only in presence of

    A)  dry air                                 

    B)  moisture

    C)  sunlight                              

    D)  pure oxygen

    Correct Answer: B

    Solution :

                    Bleaching action of chlorine is only in presence of moisture where nascent oxygen is displaced from\[{{H}_{2}}O\]. \[C{{l}_{2}}+{{H}_{2}}O\xrightarrow{{}}HCl+HClO\]          (unstable)        \[HClO\xrightarrow{{}}HCl+[O]\]


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