Discuss the nature of bonding in the following coordination entities on the basis of valence bond theory:
\([CoF_{6}]^{3-}\)

What will be the correct order for the wavelengths of absorption in the visible region for the following: \([Ni(NO_{2})_{6}]^{4-}\), \([Ni(NH_{3})_{6}]^{2+}\), \([Ni(H_{2}O)_{6}]^{2+}\)?

Draw figure to show the splitting of d orbitals in an octahedral crystal field.

Draw the structures of optical isomers of:
\([PtCl_{2}(en)_{2}]^{2+}\)

Draw all the isomers (geometrical and optical) of:
\([Co(NH_{3})_{2}Cl_{2}(en)]^{+}\)

Using IUPAC norms write the systematic names of the following:
\([Pt(NH_{3})_{2}Cl(NH_{2}CH_{3})]Cl\)

What is crystal field splitting energy? How does the magnitude of \(\Delta_{o}\) decide the actual configuration of d orbitals in a coordination entity?

Write down the IUPAC name for each of the following complexes and indicate the oxidation state, electronic configuration and coordination number. Also give stereochemistry and magnetic moment of the complex:
\(K[Cr(H_{2}O)_{2}(C_{2}O_{4})_{2}].3H_{2}O\)

Discuss briefly giving an example in each case the role of coordination compounds in:
biological systems

Using IUPAC norms write the systematic names of the following:
\([Co(NH_{3})_{6}]Cl_{3}\)

Discuss briefly giving an example in each case the role of coordination compounds in:
medicinal chemistry

\([Cr(NH_{3})_{6}]^{3+}\) is paramagnetic while \([Ni(CN)_{4}]^{2-}\) is diamagnetic. Explain why?

what is the oxidation no. of central atom in K₃[Fe(C2O3)] ?

Explain with two examples each of the following: coordination entity, ligand, coordination number, coordination polyhedron, homoleptic and heteroleptic.

Give the oxidation state, d orbital occupation and coordination number of the central metal ion in the following complexes:
\([Mn(H_{2}O)_{6}]SO_{4}\)

Draw all the isomers (geometrical and optical) of:
\([Co(NH_{3})Cl(en)_{2}]^{2+}\)

Specify the oxidation numbers of the metals in the following coordination entities:
\([Cr(NH_{3})_{3}Cl_{3}]\)

A solution of \([Ni(H_{2}O)_{6}]^{2+}\) is green but a solution of \([Ni(CN)_{4}]^{2-}\) is colourless. Explain.

Using IUPAC norms write the systematic names of the following:
\([Ti(H_{2}O)_{6}]^{3+}\)

Using IUPAC norms write the formulas for the following:
Tetrahydroxidozincate(II)