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Write down the IUPAC names of the following compounds:

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


(i) Penta amine nitrito cobalt(III) chloride.
(ii) Potassium hexa cyanochromate (III).

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

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


Explain why chelating complex is more stable than unchelated complex?


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


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