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NEET Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Mock Test - The p-Block Elements (Groups 15, 16, 17 and 18)

  • question_answer
    \[{{\left[ HXe{{O}_{4}} \right]}^{-}}=O{{H}^{-}}\to \left[ X \right]+\left[ Y \right]+{{O}_{2}}+{{H}_{2}}O\]The products [X] and [Y] in unbalanced reaction are

    A) \[{{\left[ Xe{{O}_{6}} \right]}^{4-}}\]and Xe

    B) \[{{\left[ Xe{{O}_{6}} \right]}^{4-}}\]and \[Xe{{O}_{3}}\]

    C) \[Xe{{O}_{3}}\] and Xe

    D) \[{{H}_{2}}Xe{{O}_{4}}\]and Xe

    Correct Answer: A

    Solution :

    [a] Hydrogen xenate ion, \[{{[HXe{{O}_{4}}]}^{-}}\](oxidation state of Xe=+6) disproportionates slowly in solution to give perxenates, \[{{[Xe{{O}_{6}}]}^{4-}}(O.S.\,of\,Xe=+8)\]and xenon.


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