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BVP Medical BVP Medical Solved Paper-2004

  • question_answer
    In the reaction,\[HAs{{O}_{4}}+S{{n}^{2+}}\xrightarrow{{}}As+S{{n}^{4+}}+{{H}_{2}}O\]oxidising agent is:

    A)  \[S{{n}^{2+}}\]                                

    B)  \[S{{n}^{4+}}\]

    C)  \[As\]                                  

    D)  \[HAs{{O}_{2}}\]

    Correct Answer: D

    Solution :

                    Oxidizing  agent,  itself,  undergoes reduction during a redox reaction reduction \[\overset{+3}{\mathop{HAs{{O}_{2}}}}\,+S{{n}^{2+}}\xrightarrow{{}}\overset{0}{\mathop{As}}\,+S{{n}^{2+}}+{{H}_{2}}O\] Hence, here \[HAs{{O}_{2}}\] is acting as oxidizing agent.


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