Using valency bond approach predict the shape and magnetism (paramagnetic or diamagnetic) of [Ni(CN)₄]^–.

Explain the following terms:  (i) Inner orbital complex and (ii) outer orbital complex.

What is meant by stability constant of a complex? 

Define cis-trans isomerism. Draw the cis and trans isomers of [Co(NH₃)₃Cl₃) ion.

Deduce the structures of [NiCl₄]^2– and [Ni(CN)₄]^2– considering the hybridization of the metal ion. Calculate the magnetic moment (spin only) of the species.  

Illustrate with an example each of the following terms: (i) Ionization isomerism, (ii) coordination isomerism, (iii) Linkage isomerism, (iv) Geometrical isomerism (v) Optical isomerism.

Draw the isomers of each of the following:
(i)    [Pt(NH₃)₂Cl₂]    (ii) [PtCl₃Br₃]^2–
(ii)   [Co(NH₃)₄Cl₂]    (iv) [Co(en)₂Cl₂]⁺.