Question

Which out of the following two complexes is more stable and why ? [CoF6]3–, [Co(C2O4)3]3–

Write the IUPAC name of the given complex : [Pt(NH3)2Cl2]

Answer any three of the following questions :

The Valence Bond Theory (VBT) explains the formation, magnetic behaviour and geometrical shapes of coordination compounds whereas 'The Crystal Field Theory' for coordination compounds is based on the effect of different crystal fields (provided by ligands taken as point charges), on the degeneracy of d-orbital energies of the central metal atom/ion. The splitting of the d-orbitals provides different electronic arrangements in strong and weak crystal fields. The crystal field theory attributes the colour of the coordination compounds to d-d transition of the electron. Coordination compounds find extensive applications in metallurgical processes, analytical and medicinal chemistry. Answer the following questions: