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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2011

  • question_answer
        \[C{{N}^{-}}\]is a strong field ligand. This is due to the fact that   

    A)  it carries a negative charge

    B)  it is a pseudo halide

    C)  it can accept electrons from metal species

    D)  it forms high spin complexes with metal Species

    Correct Answer: A

    Solution :

                    Cyanide ion is strong field ligand because of the presence of negative charge which makes it a stronger a donor than CO but it also weak the effectiveness of\[C{{N}^{-}}\]as a\[\pi \]acceptor. Thus, \[C{{N}^{-}}\]have the ability to form\[\sigma -\]bond and\[\pi -\]bond.


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