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KVPY Sample Paper KVPY Stream-SX Model Paper-5

  • question_answer
    The lanthanide ion that would show colour is:

    A) \[L{{a}^{3+}}\]                     

    B) \[G{{d}^{3+}}\]

    C) \[S{{m}^{3+}}\]        

    D) \[L{{u}^{3+}}\]

    Correct Answer: C

    Solution :

    \[S{{m}^{+3}}\] (Yellow) Due to presence of unpaired \[{{e}^{-}}.\]          


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