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NEET Chemistry Coordination Chemistry Question Bank Self Evaluation Test - Co-ordination Compounds

  • question_answer
    For octahedral complex, which of the following \[{{d}^{n}}\] configurations of metal cation cannot exist in high spin and low spin forms?

    A) \[{{d}^{3}}\] and \[{{d}^{8}}\]         

    B) \[{{d}^{3}}\] and \[{{d}^{5}}\]

    C) \[{{d}^{3}}\] and \[{{d}^{6}}\]         

    D) \[{{d}^{4}}\] and \[{{d}^{8}}\]

    Correct Answer: A

    Solution :

    [a] In \[{{d}^{3}}\] and \[{{d}^{8}}\] octahedral complexes number of unpaired \[{{e}^{-}}\] s at central metal atom/ion never changes, therefore for such octahedral complexes terms high spin and low spin not used.


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