Question 1

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

Accepted Answer

A)  [Fe(H2O)6]2+ 
B)  [Al(H2O)3(OH)3] 
C)  [Cu(NH3)4(H2O)2]+ 
D)  [Co(H2O)4(OH)2] 
E)  [Cr(NH3)6]3+ 
A)  [Fe(H2O)6]2+ 
B)  [Al(H2O)3(OH)3] 
C)  [Cu(NH3)4(H2O)2]+ 
D)  [Co(H2O)4(OH)2] 
E)  [Cr(NH3)6]3+

Question 2

Determine the chemical formula for the compound,diamminetetraaquairon(II)chloride.

Accepted Answer

A)  [Fe(NH3)2(H2O)4Cl] 
B)  [Fe(NH3)2][(H2O)4Cl] 
C)  [Fe(NH3)2(H2O)4]Cl2 
D)  [Fe(H2O)4][(NH3)2Cl] 
E)  [Fe(NH3)2(H2O)4]Cl3 
A)  [Fe(NH3)2(H2O)4Cl] 
B)  [Fe(NH3)2][(H2O)4Cl] 
C)  [Fe(NH3)2(H2O)4]Cl2 
D)  [Fe(H2O)4][(NH3)2Cl] 
E)  [Fe(NH3)2(H2O)4]Cl3

Question 3

Identify the shape of the hemoglobin complex.

Accepted Answer

A)  octahedral 
B)  tetrahedral 
C)  pentadral 
D)  hexadral 
E)  heptadral 
A)  octahedral 
B)  tetrahedral 
C)  pentadral 
D)  hexadral 
E)  heptadral

Question 4

Determine the chemical formula for the compound,potassiumtrisethylenediamine chromate(III).

Accepted Answer

A)  K3[Cr(NH2CH2CH2NH2)3] 
B)  [K(NH2CH2CH2NH2)3]Cr3+ 
C)  [KCr(NH2CH2CH2NH2)3]3+ 
D)  K2[Cr(NH2CH2CH2NH2)4] 
E)  [Cr(NH2CH2CH2NH2)2]K2 
A)  K3[Cr(NH2CH2CH2NH2)3] 
B)  [K(NH2CH2CH2NH2)3]Cr3+ 
C)  [KCr(NH2CH2CH2NH2)3]3+ 
D)  K2[Cr(NH2CH2CH2NH2)4] 
E)  [Cr(NH2CH2CH2NH2)2]K2

Question 5

The complex ion [Co(OH2)6](3+)is blue in an aqueous solution.Estimate the crystal field splitting energy (in kJ/mol)for this ion.

Accepted Answer

A)  199 kJ/mol 
B)  282 kJ/mol 
C)  328 kJ/mol 
D)  127 kJ/mol 
E)  302 kJ/mol 
A)  199 kJ/mol 
B)  282 kJ/mol 
C)  328 kJ/mol 
D)  127 kJ/mol 
E)  302 kJ/mol

Question 6

Choose the electron configuration for Zr2+.

Accepted Answer

A)  [Kr]5s24d2 
B)  [Kr]5s2 
C)  [Kr]4d2 
D)  [Ar]4s23d104p6 
E)  [Kr]5s24d4 
A)  [Kr]5s24d2 
B)  [Kr]5s2 
C)  [Kr]4d2 
D)  [Ar]4s23d104p6 
E)  [Kr]5s24d4

Question 7

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

Accepted Answer

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

Question 8

How many unpaired electrons would you expect for the complex ion: [FeF6]3-?

Accepted Answer

A)  0 
B)  1 
C)  3 
D)  4 
E)  5 
A)  0 
B)  1 
C)  3 
D)  4 
E)  5

Question 9

Explain how EDTA is used to treat lead poisoning.

Accepted Answer

A calcium complex of EDTA is a

Question 10

How many unpaired electrons would you expect for the complex ion: [Cr(CN)6]4-?

Accepted Answer

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

Question 11

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

Accepted Answer

The transition metals lose their outer s

Question 12

Identify the geometry of [Pd I4]2-.

Accepted Answer

A)  tetrahedral 
B)  square planar 
C)  linear 
D)  octahedral 
E)  trigonal planar 
A)  tetrahedral 
B)  square planar 
C)  linear 
D)  octahedral 
E)  trigonal planar

Question 13

Choose the polydentate ligand from the substances below.

Accepted Answer

A)  chloride ion 
B)  EDTA 
C)  nitrate ion 
D)  hydroxide ion 
E)  carbon monoxide 
A)  chloride ion 
B)  EDTA 
C)  nitrate ion 
D)  hydroxide ion 
E)  carbon monoxide

Question 14

Identify the transition metal that is the coordinated metal in chlorophyll.

Accepted Answer

A)  magnesium 
B)  manganese 
C)  selenium 
D)  iron 
E)  silver 
A)  magnesium 
B)  manganese 
C)  selenium 
D)  iron 
E)  silver

Question 15

Which of the following can function as a bidentate ligand?

Accepted Answer

A)  CO   
B)  NH3  
C)  CH3NH2  
D)  H2NCH2CO2  - 
A)  CO   
B)  NH3  
C)  CH3NH2  
D)  H2NCH2CO2  -

Question 16

What type of hybridization (according to valence bond theory)does Fe exhibit in the complex ion,[Fe(H2O)4(Cl)2]+?

Accepted Answer

A)  dsp3 
B)  sp2 
C)  d2sp2 
D)  d2sp3 
E)  d2sp 
A)  dsp3 
B)  sp2 
C)  d2sp2 
D)  d2sp3 
E)  d2sp

Question 17

Which of the following complex ions absorbs light of the shortest wavelength?

Accepted Answer

A)  [FeCl6]3- 
B)  [Fe(OH)6]3- 
C)  [Fe(CN)6]3- 
D)  [Fe(H2O)6]3+ 
E)  [FeI6]3- 
A)  [FeCl6]3- 
B)  [Fe(OH)6]3- 
C)  [Fe(CN)6]3- 
D)  [Fe(H2O)6]3+ 
E)  [FeI6]3-

Question 18

Determine the chemical formula for the compound,diaquadicarbonylzinc tetrabromopalladate (IV).

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]

Question 19

The complex ion,[Cr(NH3)6]3+,has a maximum absorption of 463 nm.Calculate the crystal field splitting energy (in kJ/mol)for this ion.

Accepted Answer

A)  299 kJ/mol 
B)  538 kJ/mol 
C)  372 kJ/mol 
D)  258 kJ/mol 
E)  193kJ/mol 
A)  299 kJ/mol 
B)  538 kJ/mol 
C)  372 kJ/mol 
D)  258 kJ/mol 
E)  193kJ/mol

Question 20

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+

Exam 23: Transition Metals and Coordination Compounds

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

Determine the chemical formula for the compound,diamminetetraaquairon(II)chloride.

Identify the shape of the hemoglobin complex.

Determine the chemical formula for the compound,potassiumtrisethylenediamine chromate(III).

The complex ion [Co(OH2)6](3+)is blue in an aqueous solution.Estimate the crystal field splitting energy (in kJ/mol)for this ion.

Choose the electron configuration for Zr2+.

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

How many unpaired electrons would you expect for the complex ion: [FeF6]3-?

Explain how EDTA is used to treat lead poisoning.

How many unpaired electrons would you expect for the complex ion: [Cr(CN)6]4-?

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

Identify the geometry of [Pd I4]2-.

Choose the polydentate ligand from the substances below.

Identify the transition metal that is the coordinated metal in chlorophyll.

Which of the following can function as a bidentate ligand?

What type of hybridization (according to valence bond theory)does Fe exhibit in the complex ion,[Fe(H2O)4(Cl)2]+?

Which of the following complex ions absorbs light of the shortest wavelength?

Determine the chemical formula for the compound,diaquadicarbonylzinc tetrabromopalladate (IV).

The complex ion,[Cr(NH3)6]3+,has a maximum absorption of 463 nm.Calculate the crystal field splitting energy (in kJ/mol)for this ion.

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

Essentials: Units, Measurements, and Problem Solving

Atoms

The Quantum Mechanical Model of the Atom

Periodic Properties of the Elements

Molecules and Compounds

Chemical Bonding I

Chemical Bonding Ii

Chemical Reactions and Chemical Quantities

Introduction to Solutions and Aqueous Reactions

Thermochemistry

Gases

Liquids, Solids, and Intermolecular Forces

Crystalline Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Filters

The complex ion [Co(OH₂)₆](³⁺)is blue in an aqueous solution.Estimate the crystal field splitting energy (in kJ/mol)for this ion.

Choose the electron configuration for Zr²⁺.

How many unpaired electrons would you expect for the complex ion: [FeF₆]^3-?

How many unpaired electrons would you expect for the complex ion: [Cr(CN)₆]^4-?

Identify the geometry of [Pd I₄]^2-.

What type of hybridization (according to valence bond theory)does Fe exhibit in the complex ion,[Fe(H₂O)₄(Cl)₂]⁺?

The complex ion,[Cr(NH₃)₆]³⁺,has a maximum absorption of 463 nm.Calculate the crystal field splitting energy (in kJ/mol)for this ion.