NEET Sample Paper NEET Sample Test Paper-18

  • question_answer
    Which of the following have been arranged in decreasing order of oxidation number of sulphur?

    A) \[{{H}_{2}}S{{O}_{4}}>S{{O}_{2}}>{{H}_{2}}S>{{H}_{2}}{{S}_{2}}{{O}_{8}}\]

    B) \[N{{a}_{2}}{{S}_{4}}{{O}_{6}}>{{H}_{2}}{{S}_{2}}{{O}_{7}}>N{{a}_{2}}{{S}_{2}}{{O}_{3}}>{{S}_{8}}\]

    C) \[{{H}_{2}}S{{O}_{5}}>{{H}_{2}}S{{O}_{3}}>SC{{l}_{2}}>{{H}_{2}}S\]

    D) \[S{{O}_{2}}^{2+}>S{{O}_{4}}^{2-}>S{{O}_{3}}^{2-}>HS{{O}_{4}}^{-}\]   

    Correct Answer: C

    Solution :

    Compound                  Oxidation state \[{{H}_{2}}S{{O}_{5}}\]                           +8 \[{{H}_{2}}S{{O}_{3}}\]                           +4 \[SC{{l}_{2}}\]                                  +2 \[{{H}_{2}}S\]                                  -2 Hence, the correct option is [c].


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