Chapter 27

Discuss the factors responsible for the acid hydrolysis of octahedral complexs.

Discuss the mechanism for the base hydrolysis of octahedral ammine complexes of \(\mathrm{Co}^{3+}\).

What are electron-transfer reactions? How do the one-election and two-electron transfer reactions differ from each other?

Discuss the mechanism for the quantitative transfer of chloride ion from Co to \(\mathrm{Cr}\) in \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{5} \mathrm{Cl}\right]^{2+}\) and \(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}\).

Discuss the outer-sphere mechanism for electron-transfer reaction with the help of a suitable example.

Discuss the inner-sphere mechanism for electron transfer reaction with the help of a suitable example.

Discuss the mechanism for substitution in square planar complexes fo platinum (II).

Define trans-effect. How does it affect the substitution of square planar complexes?

Discuss the theories of trans-effect. How do these theories explain the trans- effects of various ligands?

Define complementary and noncomplementary two-electron transfer reactions with the help of suitable examples.