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


Paramagnetic Character depend on the number of unpaired electron. In the [Fe(CN)6]3– has 1 unpaired electron, therefore, it is paramagnetic whereas [Fe(CN)6]3– is diamagnetic because it does not have unpaired electron.
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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 down the IUPAC names of the following compounds:

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


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


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