On the basis of VB theory explain the nature of bonding in ` [Co(C_2O_4)_3 ]^(3-)`

On the basis of valence bond theory explain the nature of bonding in [CoF_(6)]^(3-) ion. Write the IUPAC name of [Co(NO_(2))_(3)(NH_(3))_(3)] .

One the basis of valence bond theory explain the structure of [Co(NH_3)_6]^(3+) ion

On the basis of valence band theory explain the structure of [Co(NH_3)_6]^(3+) ion.

On the basis of lanthanoid contraction, explain the following : Nature of bonding in La_(2)O_(3) and Lu_(2)O_(3) .

Which theory can explain bonding Ni ( CO ) _ 4