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(a) Draw the structures of geometrical isomers of  [Fe(NH_3)_2(CN)_4]^- .

(b)  [NiCl_4]^2^- is paramagnetic while  [Ni(CO)_4] is diamagnetic though both are tetrahedral. Why ? [Atomic number of Ni = 28]

 

 

 

 
 
 
 
 

Answers (1)

(a)

Geometrical isomers of  [Fe(NH_3)_2(CN)_4]^-.

       

(b)

 [NiCl_4]^{2-} is paramagnetic while  [Ni(CO)_4] is diamagnetic since Cl is a weak field ligand its  \Delta _0<P because of this it cannot cause pairing of elections whereas CO is a strong field ligand its \Delta _0>P therefore causes pairing of electrons.

Posted by

Sumit Saini

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