Coordination Compounds Quiz

What is the primary concept needed to understand coordination number and oxidation number?

• Atomic radius

• Denticity

• Electronegativity

• Ionization energy

How many lone pairs of electrons does NH3 donate to a metal atom?

• Two

• One

• None

• Three

Which of the following is a bidentate ligand?

• NH3

• H2O

• en

• CO

What is the coordination number of a compound with four monodentate ligands?

• 4

• 8

• 6

• 2

In a complex compound, if the denticity of a ligand is 2 and there are 3 such ligands, what is the coordination number?

• 3

• 12

• 6

• 9

What is the oxidation state of iron in a complex with three potassium atoms and six CN ions?

• +3

• +5

• +2

• +4

In a complex compound with cobalt and six NH3 molecules, what is the oxidation state of cobalt if the total charge is +3?

• +4

• +1

• +2

• +3

What is the charge on NH3 in a complex compound?

• +2

• -1

• 0

• +1

Which technique is used to find the oxidation state of a complex compound?

• Using atomic mass

• Balancing charges

• Determining bond length

• Calculating molar mass

What is the coordination number of a complex with one EDTA ligand?

• 5

• 7

• 4

• 6