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

  • question_answer
    The correct statement about the magnetic properties of \[{{[Fe{{\left( CN \right)}_{6}}]}^{3-}}\] and \[{{[Fe{{F}_{6}}]}^{3-}}\] is \[\left( Z=26 \right):\]

    A) both are paramagnetic.

    B) both are diamagnetic.

    C) \[{{[Fe{{\left( CN \right)}_{6}}]}^{3-}}\] is diamagnetic, \[{{[Fe{{F}_{6}}]}^{3-}}\] is paramagnetic.

    D) \[{{[Fe{{\left( CN \right)}_{6}}]}^{3-}}\] is paramagnetic, \[{{[Fe{{F}_{6}}]}^{3-}}\] is diamagnetic.

    Correct Answer: A

    Solution :

    [a] Both are paramagnetic, the only difference is that \[C{{N}^{-}}\] is a strong field ligand whereas \[{{F}^{-}}\] is a weak field ligand.


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