Answer any three of the following question :
(a) Explain the type of hybridization in `[Fe(CN)_6]^(3-)` on the basis of valence bond theory. (Given :Atomic number of Fe =26)
(b) Draw the geometrical isomers of `[PtCl_2(en)_2]^(2+)` ion.
(c) `[NiCl_4]^(2-)` is paramagnetic while `[Ni(CO)_4]` is diamagnetic through both are tetrahedral.Why?
(d) name the type of isomerism when ambidentate ligands are attached to central metal ion. Given one example of ambidentate ligand.