Question 1

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

Accepted Answer

A)  Fe 
B)  Fe3+ 
C)  Co3+ 
D)  Co2+ 
A)  Fe 
B)  Fe3+ 
C)  Co3+ 
D)  Co2+ C

Question 2

Which of the following can function as a chelating agent?

Accepted Answer

A)  SH- 
B)  H2O 
C)  H2NCH2CO2-   
D)  SCN - 
A)  SH- 
B)  H2O 
C)  H2NCH2CO2-   
D)  SCN - C

Question 3

Why is +2 a common oxidation state for transition elements?

Accepted Answer

The transition metals lose their outer s electrons before losing any of their d electrons. Since the outer s orbital holds two electrons, the loss of these electrons when forming an ion results in a +2 oxidation state.

Question 4

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 5

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

Accepted Answer

A)  [Cu(NH3)5Br]Cl and [Cu(NH3)5Cl]Br 
B)  [Fe(NH3)2(H2O)4]Cl2 and [Fe(NH3)4(H2O)2]Cl2 
C)  [Fe(CO)5NO2]2+ and [Fe(CO)5ONO]2+ 
D)  [Fe(NH3)2(H2O)4]Cl2 and [Fe(NH3)2(H2O)4]Br2 
E)  [Cr(H2O)6]3+ and [Cr(NH3)6]3+ 
A)  [Cu(NH3)5Br]Cl and [Cu(NH3)5Cl]Br 
B)  [Fe(NH3)2(H2O)4]Cl2 and [Fe(NH3)4(H2O)2]Cl2 
C)  [Fe(CO)5NO2]2+ and [Fe(CO)5ONO]2+ 
D)  [Fe(NH3)2(H2O)4]Cl2 and [Fe(NH3)2(H2O)4]Br2 
E)  [Cr(H2O)6]3+ and [Cr(NH3)6]3+

Question 6

Name the following: [Ni(NH3)3(H2O)3]Cl2

Accepted Answer

A)  nickel(II) trihydrotriamminechloride 
B)  nickel(I) triamminetrihydrochloride 
C)  dichloronickel(II) triamminetrihydride 
D)  nickel(III) chloride 
E)  triamminetriaquanickel(II) chloride 
A)  nickel(II) trihydrotriamminechloride 
B)  nickel(I) triamminetrihydrochloride 
C)  dichloronickel(II) triamminetrihydride 
D)  nickel(III) chloride 
E)  triamminetriaquanickel(II) chloride

Question 7

Identify the transition metal that is used in oxygen 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 8

How many unpaired electrons would you expect for the complex ion [MnF6]4-?

Accepted Answer

A)  1 
B)  0 
C)  5 
D)  2 
E)  3 
A)  1 
B)  0 
C)  5 
D)  2 
E)  3

Question 9

What is the difference between a weak-field complex and a strong-field complex?

Accepted Answer

The type of ligand attached to the centr

Question 10

How many d electrons are there in Cr2O72-?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
A)  0 
B)  1 
C)  2 
D)  3

Question 11

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 12

Match the following.
-mer-fac

Accepted Answer

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

Question 13

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 14

Match the following.
-cis-trans

Accepted Answer

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

Question 15

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 16

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

Accepted Answer

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

Question 17

How many moles of aqueous ions will be produced from the dissolution of 1.0 mole of Na2[PtCl4] in water?

Accepted Answer

A)  3 
B)  7 
C)  2 
D)  9 
E)  1 
A)  3 
B)  7 
C)  2 
D)  9 
E)  1

Question 18

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 19

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

Accepted Answer

A)  [Cu(CO)5Cl]+ 
B)  [Co(H2O)2(CO)4]3+ 
C)  [Fe(CO)5NO2]2+ 
D)  [Fe(NH3)2(H2O)4]2+ 
E)  Co(NH3)3Cl3 
A)  [Cu(CO)5Cl]+ 
B)  [Co(H2O)2(CO)4]3+ 
C)  [Fe(CO)5NO2]2+ 
D)  [Fe(NH3)2(H2O)4]2+ 
E)  Co(NH3)3Cl3

Question 20

Determine the chemical formula for the compound diaquadicarbonylzinc tetrabromopalladate(II).

Accepted Answer

A)  [PdZn(H2O)2(CO)2]Br4 
B)  [Zn(H2O)2(CO)2]2[PdBr4] 
C)  [Pd(H2O)2][Zn(CO)2]Br4 
D)  [Pd(H2O)2]2[Zn(CO)2]3Br4 
E)  [Zn(H2O)2(CO)2][PdBr4] 
A)  [PdZn(H2O)2(CO)2]Br4 
B)  [Zn(H2O)2(CO)2]2[PdBr4] 
C)  [Pd(H2O)2][Zn(CO)2]Br4 
D)  [Pd(H2O)2]2[Zn(CO)2]3Br4 
E)  [Zn(H2O)2(CO)2][PdBr4]

Exam 25: Transition Metals and Coordination Compounds

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

Which of the following can function as a chelating agent?

Why is +2 a common oxidation state for transition elements?

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

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

Name the following: [Ni(NH3)3(H2O)3]Cl2

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

How many unpaired electrons would you expect for the complex ion [MnF6]4-?

What is the difference between a weak-field complex and a strong-field complex?

How many d electrons are there in Cr2O72-?

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

Match the following. -mer-fac

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

Match the following. -cis-trans

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

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

How many moles of aqueous ions will be produced from the dissolution of 1.0 mole of Na2[PtCl4] in water?

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

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

Determine the chemical formula for the compound diaquadicarbonylzinc tetrabromopalladate(II).

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 Metallurgy

Filters

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

Name the following: [Ni(NH₃)₃(H₂O)₃]Cl₂

How many unpaired electrons would you expect for the complex ion [MnF₆]^4-?

How many d electrons are there in Cr₂O₇^2-?

How many moles of aqueous ions will be produced from the dissolution of 1.0 mole of Na₂[PtCl₄] in water?

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