Question 1

Identify the ion that is responsible for the green colour in emeralds.

Accepted Answer

A) Cr+3 
B) Cr+4 
C) Cr+5 
D) Cr+6 
E) Cr+7 
A) Cr+3 
B) Cr+4 
C) Cr+5 
D) Cr+6 
E) Cr+7

Question 2

Choose the electron configuration for Nb3+.

Accepted Answer

A) [Kr]5s14d2 
B) [Kr]5s24d1 
C) [Kr]5s2 
D) [Kr]4d2 
E) [Kr]5s24d5 
A) [Kr]5s14d2 
B) [Kr]5s24d1 
C) [Kr]5s2 
D) [Kr]4d2 
E) [Kr]5s24d5

Question 3

Which of the following species has the electron configuration [Ar]3d6?

Accepted Answer

A) Cr 
B) Fe3+ 
C) Co3+ 
D) Ni3+ 
A) Cr 
B) Fe3+ 
C) Co3+ 
D) Ni3+

Question 4

What is the ground-state electron configuration for the element chromium (Z = 24)?

Accepted Answer

A) [Ne] 4s23d4 
B) [Ar] 4s23d4 
C) [Ar] 4s13d5 
D) [Ar] 3d6 
A) [Ne] 4s23d4 
B) [Ar] 4s23d4 
C) [Ar] 4s13d5 
D) [Ar] 3d6

Question 5

Which of the following compounds can exhibit fac-mer isomerism?

Accepted Answer

A) [Cu(CO)5Cl]+ 
B) [Co(H2O)3(CO)3]3+ 
C) [Fe(CO)5NO2]2+ 
D) [Fe(NH3)2(H2O)4]2+ 
E) [Cr(H2O)4Br2]+ 
A) [Cu(CO)5Cl]+ 
B) [Co(H2O)3(CO)3]3+ 
C) [Fe(CO)5NO2]2+ 
D) [Fe(NH3)2(H2O)4]2+ 
E) [Cr(H2O)4Br2]+

Question 6

Which ion would you expect to have the largest crystal field splitting, △?

Accepted Answer

A) [Rh(CN)6]4- 
B) [Rh(CN)6]3- 
C) [Rh(H2O)6]2+ 
D) [Rh(H2O)6]3+ 
A) [Rh(CN)6]4- 
B) [Rh(CN)6]3- 
C) [Rh(H2O)6]2+ 
D) [Rh(H2O)6]3+

Question 7

Match the following.

-linkage

Accepted Answer

A) [Zn(NH3)2Cl2]Br2 and [Zn(NH3)2Br2]Cl2 
B) [Cr(en)3]3+ 
C) [Ni(CN)2(OH)2]2- 
D) [Cu(SCN)4]3- and [Cu(NCS)4]3- 
E) [Cr(NH3)3(CO)3]3+ 
A) [Zn(NH3)2Cl2]Br2 and [Zn(NH3)2Br2]Cl2 
B) [Cr(en)3]3+ 
C) [Ni(CN)2(OH)2]2- 
D) [Cu(SCN)4]3- and [Cu(NCS)4]3- 
E) [Cr(NH3)3(CO)3]3+

Question 8

Match the following.

-cis-trans

Accepted Answer

A) [Zn(NH3)2Cl2]Br2 and [Zn(NH3)2Br2]Cl2 
B) [Cr(en)3]3+ 
C) [Ni(CN)2(OH)2]2- 
D) [Cu(SCN)4]3- and [Cu(NCS)4]3- 
E) [Cr(NH3)3(CO)3]3+ 
A) [Zn(NH3)2Cl2]Br2 and [Zn(NH3)2Br2]Cl2 
B) [Cr(en)3]3+ 
C) [Ni(CN)2(OH)2]2- 
D) [Cu(SCN)4]3- and [Cu(NCS)4]3- 
E) [Cr(NH3)3(CO)3]3+

Question 9

Identify the transition metal that is used in iron transport in the human body.

Accepted Answer

A) manganese 
B) iron 
C) zinc 
D) copper 
E) chromium 
A) manganese 
B) iron 
C) zinc 
D) copper 
E) chromium

Question 10

Identify the ion that is responsible for the red colour of rubies.

Accepted Answer

A) Cr+3 
B) Cr+4 
C) Cr+5 
D) Cr+6 
E) Cr+7 
A) Cr+3 
B) Cr+4 
C) Cr+5 
D) Cr+6 
E) Cr+7

Question 11

Determine the chemical formula for the compound tris(ethylenediamine)chromium(III)chloride.

Accepted Answer

A) [Cr(NH2CH2CH2NH2)3]Cl3 
B) [(NH2CH2CH2NH2)3]Cr3+ 
C) [Cr(NH2CH2CH2NH2)3]3+ 
D) Cl2[Cr(NH2CH2CH2NH2)4] 
E) [Cr(NH2CH2CH2NH2)2]Cl2 
A) [Cr(NH2CH2CH2NH2)3]Cl3 
B) [(NH2CH2CH2NH2)3]Cr3+ 
C) [Cr(NH2CH2CH2NH2)3]3+ 
D) Cl2[Cr(NH2CH2CH2NH2)4] 
E) [Cr(NH2CH2CH2NH2)2]Cl2

Question 12

Name the following: [Fe(CO)6][Ag(CN)2]2

Accepted Answer

A) iron(III)hexacarbonyl silverdicyanide 
B) hexacarbonyliron(II)dicyanoargentate 
C) iron(II)carbonyl silvercyanide 
D) hexacarbonyliron(III)dicyanosilvate 
E) iron(II)hexacarbonyl silvercyanide 
A) iron(III)hexacarbonyl silverdicyanide 
B) hexacarbonyliron(II)dicyanoargentate 
C) iron(II)carbonyl silvercyanide 
D) hexacarbonyliron(III)dicyanosilvate 
E) iron(II)hexacarbonyl silvercyanide

Question 13

How many unpaired electrons would you expect for the complex ion [FeF6]4-?

Accepted Answer

A) 2 
B) 6 
C) 4 
D) 3 
E) 0 
A) 2 
B) 6 
C) 4 
D) 3 
E) 0

Question 14

Which of the following pairs of coordination compounds or complex ions are examples of coordination isomers?

Accepted Answer

A) [Fe(CO)5NO2]2+ and [Fe(CO)5ONO]2+ 
B) [Fe(NH3)2(H2O)4]Cl2 and [Fe(NH3)2(H2O)4]Br2 
C) [Fe(NH3)2(H2O)4]Cl2 and [Fe(NH3)4(H2O)2]Cl2 
D) [Cu(CO)5Br]Cl and [Cu(CO)5Cl]Br 
E) [MnCl3Br]2- and [MnClBr3]2- 
A) [Fe(CO)5NO2]2+ and [Fe(CO)5ONO]2+ 
B) [Fe(NH3)2(H2O)4]Cl2 and [Fe(NH3)2(H2O)4]Br2 
C) [Fe(NH3)2(H2O)4]Cl2 and [Fe(NH3)4(H2O)2]Cl2 
D) [Cu(CO)5Br]Cl and [Cu(CO)5Cl]Br 
E) [MnCl3Br]2- and [MnClBr3]2-

Question 15

What is the highest possible oxidation state for manganese?

Accepted Answer

A) +2 
B) +5 
C) +6 
D) +7 
A) +2 
B) +5 
C) +6 
D) +7

Question 16

Identify the isomers that have ligands that coordinate to a metal in different orientations.

Accepted Answer

A) linkage isomers 
B) cis-trans isomers 
C) coordination isomers 
D) optical isomers 
E) stereoisomers 
A) linkage isomers 
B) cis-trans isomers 
C) coordination isomers 
D) optical isomers 
E) stereoisomers

Question 17

Match the following.

-mer-fac

Accepted Answer

A) [Zn(NH3)2Cl2]Br2 and [Zn(NH3)2Br2]Cl2 
B) [Cr(en)3]3+ 
C) [Ni(CN)2(OH)2]2- 
D) [Cu(SCN)4]3- and [Cu(NCS)4]3- 
E) [Cr(NH3)3(CO)3]3+ 
A) [Zn(NH3)2Cl2]Br2 and [Zn(NH3)2Br2]Cl2 
B) [Cr(en)3]3+ 
C) [Ni(CN)2(OH)2]2- 
D) [Cu(SCN)4]3- and [Cu(NCS)4]3- 
E) [Cr(NH3)3(CO)3]3+

Question 18

Name the following: [Fe(H2O)4Br2]Cl

Accepted Answer

A) tetraaquadibromoiron(II)chloride 
B) dibromotetrahydroironchloride 
C) dibromotetrahydroiron(II)chloride 
D) tetraaquadibromoiron(III)chloride 
E) iron(II)dibromotetraquachloride 
A) tetraaquadibromoiron(II)chloride 
B) dibromotetrahydroironchloride 
C) dibromotetrahydroiron(II)chloride 
D) tetraaquadibromoiron(III)chloride 
E) iron(II)dibromotetraquachloride

Question 19

Which of the following compounds can exhibit cis-trans isomerism?

Accepted Answer

A) [Fe(CO)5NO2]2+ 
B) [Cu(CO)5Cl]+ 
C) [MnClBr3]2- 
D) [Cr(H2O)6]3+ 
E) [Ni(CO)2(NH3)2]2+ 
A) [Fe(CO)5NO2]2+ 
B) [Cu(CO)5Cl]+ 
C) [MnClBr3]2- 
D) [Cr(H2O)6]3+ 
E) [Ni(CO)2(NH3)2]2+

Question 20

Which of the following is a type of structural isomerism?

Accepted Answer

A) linkage isomers 
B) cis-trans isomers 
C) fac-mer isomers 
D) enantiomers 
E) optical isomers 
A) linkage isomers 
B) cis-trans isomers 
C) fac-mer isomers 
D) enantiomers 
E) optical isomers

Exam 25: Transition Metals and Coordination Compounds

Identify the ion that is responsible for the green colour in emeralds.

Choose the electron configuration for Nb3+.

Which of the following species has the electron configuration [Ar]3d6?

What is the ground-state electron configuration for the element chromium (Z = 24)?

Which of the following compounds can exhibit fac-mer isomerism?

Which ion would you expect to have the largest crystal field splitting, △?

Match the following. -linkage

Match the following. -cis-trans

Identify the transition metal that is used in iron transport in the human body.

Identify the ion that is responsible for the red colour of rubies.

Determine the chemical formula for the compound tris(ethylenediamine)chromium(III)chloride.

Name the following: [Fe(CO)6][Ag(CN)2]2

How many unpaired electrons would you expect for the complex ion [FeF6]4-?

Which of the following pairs of coordination compounds or complex ions are examples of coordination isomers?

What is the highest possible oxidation state for manganese?

Identify the isomers that have ligands that coordinate to a metal in different orientations.

Match the following. -mer-fac

Name the following: [Fe(H2O)4Br2]Cl

Which of the following compounds can exhibit cis-trans isomerism?

Which of the following is a type of structural isomerism?

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallury

Filters

Choose the electron configuration for Nb³⁺.

Which of the following species has the electron configuration [Ar]3d⁶?

Name the following: [Fe(CO)₆][Ag(CN)₂]₂

How many unpaired electrons would you expect for the complex ion [FeF₆]^4-?

Name the following: [Fe(H₂O)₄Br₂]Cl