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JEE Main & Advanced Chemistry The s-Block Elements / s-ब्लॉक के तत्व Question Bank Self Evaluation Test - The s-Block Elements

  • question_answer
    Which of the following statements about\[N{{a}_{2}}{{O}_{2}}\], is not correct?           

    A) It is diamagnetic in nature

    B) It is derivative of \[{{H}_{2}}{{O}_{2}}\]

    C) \[N{{a}_{2}}{{O}_{2}}\] oxidises \[C{{r}^{3+}}\] to \[CrO_{4}^{2-}\]in  acid medium.

    D) It is the super oxide of sodium

    Correct Answer: D

    Solution :

    [d] \[N{{a}_{2}}{{O}_{2}}\] is peroxide of sodium not super oxide. The formula of sodium superoxide is \[Na{{O}_{2}}\].


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