AMU Medical AMU Solved Paper-1999

  • question_answer
    \[{{H}_{2}}S\]acts only as a reducing agent while\[S{{O}_{2}},\]can act both as a reducing and oxidizing agent because

    A)  S in\[{{H}_{2}}S\]has -2 oxidation state

    B)  S in\[S{{O}_{2}}\]has oxidation state\[+4\]

    C)  hydrogen in\[{{H}_{2}}S\]is more +ve than oxygen in\[S{{O}_{2}}\]

    D)  oxygen is more -ve in\[S{{O}_{2}}\]

    Correct Answer: C

    Solution :

    : \[S{{O}_{2}}+2{{H}_{2}}S\to 2{{H}_{2}}O+S\] (oxidising nature of\[S{{O}_{2}}\]) \[S{{O}_{2}}+2{{H}_{2}}O\to {{H}_{2}}S{{O}_{4}}+2H\] (reducing nature of\[S{{O}_{2}}\])


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