Coordination Compounds

What is the IUPAC name for the ligand NH2?

• amino

• nitrogen

• amide

• amine

How do you determine the oxidation state of the central metal in a coordination compound?

• The oxidation state is calculated by adding the charges of the ligands to the overall charge of the complex.

• The oxidation state of the central metal is calculated by subtracting the sum of the charges of the ligands from the overall charge of the complex.

• The oxidation state is determined by the number of ligands attached to the metal.

• The oxidation state is always zero in coordination compounds.

What is the geometric isomerism observed in octahedral complexes?

• Cyclic and acyclic isomerism.

• Optical isomerism only.

• Geometric and structural isomerism.

• Cis and trans isomerism.

Explain the concept of cis and trans isomerism in coordination compounds.

• Cis isomerism has ligands in a linear arrangement, while trans isomerism has them in a circular arrangement.

• Cis isomerism involves different ligands, while trans isomerism involves identical ligands.

• Cis isomerism has similar ligands adjacent, while trans isomerism has them opposite.

• Cis isomerism occurs only in octahedral complexes, while trans isomerism occurs in tetrahedral complexes.

What is the coordination number of a complex with a tetrahedral geometry?

• 2

• 8

• 6

• 4

How do you name a complex with a bidentate ligand?

• [Ligand name] [bis- if applicable] [Metal name] [oxidation state]

• [Ligand name] [Metal name] [prefix] [oxidation state]

• [Ligand name] [Metal name] [oxidation state]

• [Metal name] [bis- if applicable] [Ligand name] [oxidation state]

What is the oxidation state of cobalt in [Co(NH3)6]Cl3?

• +1

• +2

• +4

• +3

Describe the difference between facial and meridional isomers in octahedral complexes.

• Facial isomers have all ligands on opposite sides; meridional isomers have them distributed evenly.

• Facial isomers are always symmetrical; meridional isomers are always asymmetrical.

• Facial isomers have three identical ligands on one face; meridional isomers have two identical ligands on one face and one on the opposite side.

• Facial isomers have two identical ligands on one face; meridional isomers have three identical ligands on the opposite side.

What is the charge of the complex ion [CuCl4]2-?

• -2

• -1

• 0

• +2

How do you identify the common geometries of coordination compounds?

• Common geometries include linear, tetrahedral, square planar, and octahedral.

• cubic

• hexagonal

• trigonal planar