Out of the following two coordination entities which is chiral (optically active)?
(a) cis-[CrCl₂(ox)₂]^3-
(b) trans-[CrCl₂(ox)₂]^3-

2

(a)

Using valence bond theory, explain the bonding in [Cr(H₂O)₆]³⁺. (At. No.of Cr = 24).

2

(a)

Write the IUPAC name of the complex [Cr(NH₃)₄Cl₂]⁺. What type of isomerism does it exhibit? 

2

(a)

(i) Write down the IUPAC name of the following complex: [Co(NH₃)₅Cl]²⁺
(ii) Write the formula for the following complex: Potassium tetrachloridonickelate (II)

2

(a)

Explain why [Co(NH₃)₆]³⁺ is an inner complex whereas [Ni(NH₃)₆]²⁺ is an outer orbitals complex. (At. no. Co = 27, Ni = 28)

2

(a)

Write the state of hybridisation, shape and IUPAC name of the complex
[CO(NH₃)₆]³⁺ (Atomic no. of Co= 27).

2

(a)

Describe the shape and magnetic behaviour of the following complex.  [Ni(CN)₄]^2-

2

(a)

CuSO₄.5H₂O is blue in colour while CuSO₄ is colourless. Why?

2

(a)

Name the type of isomerism when ambidentate ligands are attached to central metal ion. Give two examples of ambidentate ligands.

2

(a)