Give two complexes which are used in medicines. from Chemist
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    Coordination Compounds

    Multiple Choice QuestionsShort Answer Type

    61.

    Which of the two is more stable K4[Fe(CN)6] or K3[Fe(CN)6].

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    62.

    Draw cis- and trans-isomers of [Pt(NH3)2Cl2].

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    63.

    Write IUPAC name of K3[Fe(C2O4)3].

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    64.

    Give two complexes which are used in medicines.

    (i) Cis-platin is used as anti-cancer agent.
    (ii) Cyanocobalamine is vitamin B12 which is used to prevent anaemia.


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    65. [Fe(CN)6]3– is weakly paramagnetic while [Fe(CNO)6]4– is diamagnetic, why?
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    66.

    A coordination compound has the formula CoCl3.4NH3. It does not liberate NH3 but forms a precipitate of AgCl on treatment with AgNO3 solution. Write the structure and IUPAC name of the complex.

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    67.

    Explain why chelating complex is more stable than unchelated complex?

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    68.

    Write down the IUPAC names of the following compounds:

    (i) [CO(NH3)5ONO ]Cl2     
    (ii) K3[    Cr(CN)6]

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    69.

    Write the IUPAC name for  [Cr(NH3)5 CO3]Cl.

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    70. Give the name of a bidentate ligand.
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