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BVP Medical BVP Medical Solved Paper-2011

  • question_answer
    Lanthanide for which \[+II\] and \[+III\] oxidation states are common, is

    A)  \[La\]                                    

    B)  \[Nd\]   

    C)  \[Ce\]                                 

    D)  \[Eu\]

    Correct Answer: D

    Solution :

                    Outer electronic configuration of Eu (Z = 63) is \[4{{f}^{7}}\,\,6{{s}^{2}}\]. As the outer electronic configuration of \[E{{u}^{2+}}\]is \[4{{f}^{2}}\], making it stable and all lanthanides show \[+3\] oxidation state. Thus, Eu exhibits \[+2\] and \[+3\] oxidation states.


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