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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2006

  • question_answer
    The formation of \[O_{2}^{+}{{[Pt{{F}_{6}}]}^{-}}\] is the basis for the formation of xenon fluorides. This is because:

    A)  \[{{O}_{2}}\] and \[Xe\] have comparable sizes

    B)  Both \[{{O}_{2}}\] and \[Xe\] are gases

    C)  \[{{O}_{2}}\] and \[Xe\] have comparable ionisation energies

    D)  \[{{O}_{2}}\] and \[Xe\] have comparable electro- negativities

    Correct Answer: A

    Solution :

    The first ionisation energy of xenon is quite close to that of oxygen and the molecular diameter of xenon and oxygen are almost identical. Based on the above facts it is suggested that since oxygen combines with \[Pt{{F}_{6}}\], so xenon . should also form similar compound with \[Pt{{F}_{6}}\] SO. Magnetic moment \[=\sqrt{n(n+2)}BM\] where n is the number of unpaired electrons.


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