JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Oxygen Family

  • question_answer
    Which compound acts as an oxidising as well as reducing agent [IIT 1991]

    A) \[S{{O}_{2}}\]

    B) \[Mn{{O}_{2}}\]

    C) \[A{{l}_{2}}{{O}_{3}}\]

    D) \[Cr{{O}_{3}}\]

    Correct Answer: A

    Solution :

    The minimum and maximum oxidation number of S are `2 and +6 respectively. Since the oxidation number of S in \[S{{O}_{2}}\] is +4, therefore it can be either increased or decreased. Therefore \[S{{O}_{2}}\] behaves both as an oxidising as well as reducing agent.


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