Identify the total number of complexes having | vedclass

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(B) To identify the complexes with bidentate ligands,we analyze the ligands present in each complex:$a$) Tetracyanonickelate$(II)$ ion: $[Ni(CN)_4]^{2

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$2$

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(B) To identify the complexes with bidentate ligands,we analyze the ligands present in each complex:$a$) Tetracyanonickelate$(II)$ ion: $[Ni(CN)_4]^{2-}$. The ligand is cyanide $(CN^-)$,which is a monodentate ligand.$b$) Trioxalatocobaltate$(III)$ ion: $[Co(C_2O_4)_3]^{3-}$. The ligand is oxalate $(C_2O_4^{2-})$,which is a bidentate ligand.$c$) Sodium hexafluoroaluminate$(III)$: $Na_3[AlF_6]$. The ligand is fluoride $(F^-)$,which is a monodentate ligand.$d$) bis(ethylenediamine)dithiocyanatoplatinum$(IV)$: $[Pt(en)_2(SCN)_2]^{2+}$. The ligand ethylenediamine $(en)$ is a bidentate ligand.Thus,complexes $(b)$ and $(d)$ contain bidentate ligands.The total number of such complexes is $2$.

Identify the total number of complexes having bidentate ligands in them from the following list of complexes:
$a$) Tetracyanonickelate$(II)$ ion
$b$) Trioxalatocobaltate$(III)$ ion
$c$) Sodium hexafluoroaluminate$(III)$
$d$) bis(ethylenediamine)dithiocyanatoplatinum$(IV)$

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Identify the total number of complexes having bidentate ligands in them from the following list of complexes:$a$) Tetracyanonickelate$(II)$ ion$b$) Trioxalatocobaltate$(III)$ ion$c$) Sodium hexafluoroaluminate$(III)$$d$) bis(ethylenediamine)dithiocyanatoplatinum$(IV)$