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J & K CET Medical J & K - CET Medical Solved Paper-2002

  • question_answer
    In which of the following lanthanides, oxidation state +2 is most stable?

    A) \[Ce\]                                  

    B) \[Eu\]

    C) \[Tb\]                                   

    D) \[Dy\]

    Correct Answer: B

    Solution :

                    The +2 oxidation state of lanthanides is shown those elements which have stable\[{{f}^{0}},{{f}^{7}}\]or \[{{f}^{14}}\]configurations. The configuration of Europium (Eu) is \[[Xe]\,4{{f}^{7}}5{{d}^{0}}6{{s}^{2}}\].Hence, in Eu +2 oxidation state is most stable.


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