Quiz on Naming Complex Metal Ions

What is the correct name for the complex ion [Cu(H2O)6]2+?

• tetraaquacopper(II) ion

• hexaaquacopper(III) ion

• hexaaquacopper(II) ion

• hexaaquacopper(I) ion

Which prefix is used for four ligands in a complex ion?

• tetra

• hexa

• di

• penta

In naming complex ions, which ligand comes first in alphabetical order?

• chloro

• hydroxo

• amine

• aqua

What is the oxidation state of copper in the ion [CuCl4]2-?

• +1

• +2

• +3

• +4

What is the name of the complex ion [Al(H2O)2(OH)4]-?

• tetrahydroxoaluminate(III) ion

• tetraquaaluminate(III) ion

• diaquatetrahydroxoaluminate(III) ion

• diaquatetrahydroxoaluminate(II) ion

What does the suffix '-ate' indicate in the name of a complex ion?

• It indicates a neutral ion.

• It indicates a metal ion.

• It indicates a negatively charged ion.

• It indicates a positively charged ion.

Which of the following is true about cationic complexes?

• They are negatively charged.

• They are positively charged.

• They are always neutral.

• They have no charge.

What is the correct name for the complex ion [Cu(NH3)4(H2O)2]2+?

• tetraamminediaquacopper(II) ion

• tetraamminedihydrocopper(II) ion

• tetraamminedihydrocopper(I) ion

• tetraamminediaquacopper(III) ion

Which of the following ligands is coded with 'ammine'?

• OH-

• H2O

• NH3

• Cl-

What is the significance of the oxidation state in naming complex ions?

• It is always included.

• It is only included for anionic complexes.

• It is included if the metal has multiple oxidation states.

• It is never included.