Give an example for complex of the type [Ma₂b₂c₂] where a, b, c are monodentate ligands and give the possible isomers.

In an octahedral crystal field, draw the figure to show splitting of d orbitals

Write briefly about the applications of coordination compounds in volumetric analysis

Give the difference between double salts and coordination compounds.

[Ni(CN)₄]^2- is diamagnetic, while [NiCl₄]^2- is paramagnetic, explain using crystal field theory.