JEE Main & Advanced JEE Main Paper (Held On 26 May 2012)

  • question_answer
    Which of the following forms stable + 4 oxidationstate?   JEE Main Online Paper (Held On 26-May-2012)  

    A) La(Z=57)                              

    B)                        Eu(Z=63)

    C)                        Ce(Z=58)                             

    D)                         Gd(Z=64)

    Correct Answer: C

    Solution :

                     Only Ce(Z =58) shows stable (+4) oxidation state.


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