JEE Main & Advanced AIEEE Solved Paper-2010

  • question_answer
      The correct sequence which shows decreasing order of the ionic radii of the elements is       AIEEE  Solved  Paper-2010

    A) \[{{O}^{2-}}>{{F}^{-}}>N{{a}^{+}}>A{{l}^{3+}}\]

    B) \[A{{l}^{3+}}>M{{g}^{2+}}>N{{a}^{+}}>{{F}^{-}}>{{O}^{2-}}\]

    C) \[N{{a}^{+}}>M{{g}^{2+}}>A{{l}^{3+}}>{{O}^{2-}}>{{F}^{-}}\]

    D) \[N{{a}^{+}}>{{F}^{-}}>M{{g}^{2+}}{{O}^{2-}}A{{l}^{3+}}\]

    Correct Answer: A

    Solution :

    Bioelectric series \[r\downarrow \xrightarrow{\,}\,\frac{z}{\theta }\uparrow \] \[\therefore \]\[{{O}^{-2}}>{{F}^{-}}>N{{a}^{+}}>M{{g}^{+2}}>A{{l}^{+3}}\]


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