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RAJASTHAN PMT Rajasthan - PMT Solved Paper-1997

  • question_answer
    The oxidation number of As in \[{{H}_{3}}As{{O}_{4}}\]

    A)  \[-1\]                                   

    B)                         \[-3\]

    C)                         \[+3\]                                  

    D)                         \[+5\]

    Correct Answer: D

    Solution :

    Oxidation number of as in \[{{H}_{3}}As{{O}_{4}}\] \[3+x+(4\times -2)=0\] \[3+x-8=0\] \[x=5\]


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