CPC Inorganic Chemistry & Coordination Compounds

Question 1

What is the coordination number of the central metal ion in [Co(NH3)6]3+?

Accepted Answer

6

Answer

3

Answer

4

Answer

2

Question 2

Which of the following best describes a chelating ligand?

Accepted Answer

A ligand that binds to the metal at two or more donor atoms, forming a ring

Answer

A ligand that donates only one electron pair to the metal

Answer

A ligand that accepts electron pairs from the metal via backbonding

Answer

A monodentate ligand with a high formal charge

Question 3

What is the ground-state electron configuration of Fe2+?

Accepted Answer

[Ar] 3d6

Answer

[Ar] 3d6 4s2

Answer

[Ar] 3d5 4s1

Answer

[Ar] 3d4 4s2

Question 4

In an octahedral crystal field, which d-orbitals constitute the eg set?

Accepted Answer

dx²−y² and dz²

Answer

dxy and dx²−y²

Answer

dxz and dyz

Answer

dxy and dz²

Question 5

What type of isomerism is exhibited by [Co(NH3)4Cl2]NO2 and [Co(NH3)4ClNO2]Cl?

Accepted Answer

Ionization isomerism

Answer

Geometric isomerism

Answer

Optical isomerism

Answer

Linkage isomerism

Question 6

The color of transition metal coordination compounds arises primarily from which electronic transition?

Accepted Answer

d-d transitions

Answer

n→π* transitions

Answer

π→π* transitions

Answer

f-f transitions

Question 7

What is the oxidation state of manganese in KMnO4?

Accepted Answer

+7

Answer

+4

Answer

+6

Answer

+5