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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 41

  • question_answer
    The oxidation states of S-atoms in Caro's and Marshell's acids are:

    A) + 6, + 6   

    B)        + 6, + 4

    C) + 6, - 6              

    D)        + 4, + 6

    Correct Answer: A

    Solution :

      [a] Caro's acid \[={{H}_{2}}S{{O}_{5}}\] Marshell's acid \[={{H}_{2}}{{S}_{2}}{{O}_{8}}\] The oxidation state in both the acids is + 6 each because oxidation state cannot be greater than the number of valence electrons.     


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