Question 1

Oxygen is stored in mammalian tissue in which type of molecule?

Accepted Answer

A)  chlorophyll 
B)  cytochrome 
C)  hemoglobin 
D)  prophyrin 
E)  myoglobin 
A)  chlorophyll 
B)  cytochrome 
C)  hemoglobin 
D)  prophyrin 
E)  myoglobin E

Question 2

This molecule is toxic because it has about 200 times the affinity for the Fe2+ in hemoglobin that oxygen does, causing asphyxiation if enough of it is present in the air.

Accepted Answer

A)  NH3 
B)  CO2 
C)  CO 
D)  CN- 
E)  CH4 
A)  NH3 
B)  CO2 
C)  CO 
D)  CN- 
E)  CH4 C

Question 3

Which of the following statements is true about the octahedral complexes of Ni2+?

Accepted Answer

A)  Both strong- and weak-field complexes are paramagnetic. 
B)  The strong-field complex is paramagnetic and the weak-field complex is diamagnetic. 
C)  Both strong- and weak-field complexes are diamagnetic. 
D)  The strong-field complex is diamagnetic and the weak-field complex is paramagnetic. 
A)  Both strong- and weak-field complexes are paramagnetic. 
B)  The strong-field complex is paramagnetic and the weak-field complex is diamagnetic. 
C)  Both strong- and weak-field complexes are diamagnetic. 
D)  The strong-field complex is diamagnetic and the weak-field complex is paramagnetic. A

Question 4

The phenomenon called the __________ contraction is responsible for the great similarity in atomic size and chemistry between 4d and 5d elements.

Accepted Answer

A)  transition 
B)  coordination 
C)  none of these 
D)  isomeric 
E)  lanthanide 
A)  transition 
B)  coordination 
C)  none of these 
D)  isomeric 
E)  lanthanide

Question 5

How many unpaired electrons are found in Zn(H2O)62+?

Accepted Answer

A)  4 
B)  2 
C)  5 
D)  0 
E)  1 
A)  4 
B)  2 
C)  5 
D)  0 
E)  1

Question 6

How many unpaired electrons are found in [CoCl6]3- (weak field)?

Accepted Answer

A)  2 
B)  0 
C)  1 
D)  5 
E)  4 
A)  2 
B)  0 
C)  1 
D)  5 
E)  4

Question 7

_____ isomers and _______ isomers are classes of structural isomers.

Accepted Answer

A)  Geometric, optical 
B)  Geometric, linkage 
C)  Linkage, geometric 
D)  Coordination, linkage 
E)  Coordination, geometric 
A)  Geometric, optical 
B)  Geometric, linkage 
C)  Linkage, geometric 
D)  Coordination, linkage 
E)  Coordination, geometric

Question 8

Which of the following ligands are capable of linkage isomerism?

Accepted Answer

The answer of Which of the following ligands are capable...

Question 9

How many unpaired electrons are found in [Co(CN)4]3- (square planar)?

Accepted Answer

A)  2 
B)  0 
C)  1 
D)  4 
E)  5 
A)  2 
B)  0 
C)  1 
D)  4 
E)  5

Question 10

A complex ion is a square planar complex. It has a d8 electron configuration. What is the most reasonable d orbital scheme for this complex?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 11

In which of the following complexes does the transition metal have a d8 configuration?

Accepted Answer

A)  [Cd(NH3)4]2+ 
B)  [NiCl4]2- 
C)  [Mn(CN)6]3- 
D)  [Fe(CO)5] 
E)  [Cr(H2O)6]2+ 
A)  [Cd(NH3)4]2+ 
B)  [NiCl4]2- 
C)  [Mn(CN)6]3- 
D)  [Fe(CO)5] 
E)  [Cr(H2O)6]2+

Question 12

A metal ion in a high-spin octahedral complex has two more unpaired electrons than the same ion does in a low-spin octahedral complex. Which of the following could the metal ion be?

Accepted Answer

A)  Co3+ 
B)  Zn2+ 
C)  Co2+ 
D)  V2+ 
E)  Cu2+ 
A)  Co3+ 
B)  Zn2+ 
C)  Co2+ 
D)  V2+ 
E)  Cu2+

Question 13

How many unpaired electrons are there in a complex ion having a d5 electron configuration and an octahedral geometry in the weak-field case?

Accepted Answer

A)  2 
B)  1 
C)  3 
D)  5 
E)  4 
A)  2 
B)  1 
C)  3 
D)  5 
E)  4

Question 14

The color of a transition metal complex results from

Accepted Answer

A)  nuclear magnetic resonance. 
B)  transition of an electron between d orbitals. 
C)  bending vibrations. 
D)  stretching vibrations. 
E)  transition of an electron between an s orbital and a p orbital. 
A)  nuclear magnetic resonance. 
B)  transition of an electron between d orbitals. 
C)  bending vibrations. 
D)  stretching vibrations. 
E)  transition of an electron between an s orbital and a p orbital.

Question 15

How many of the following compounds exhibit geometric isomers? 
I.Pd(NH3)2Br2 (square planar)
II.[Co(NH3)2]Cl3
III.[Ni(NH3)4(NO2)2]
IV.K2[CoBr4]

Accepted Answer

A)  2 
B)  3 
C)  1 
D)  4 
E)  0 
A)  2 
B)  3 
C)  1 
D)  4 
E)  0

Question 16

Fluoride ion ranks low in the spectrochemical series and produces a weak crystal field in complex ions. Based on this information, predict the number of unpaired electrons in [CrF6]3-.

Accepted Answer

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

Question 17

Here are some crystal field representations of d electrons in an octahedral field: Choose the representation that fits the transition metal atom in the following species.
-K4Mn(CN)6 (assume strong field)

Accepted Answer

A)    
B)    
C)   
D)   
E)   
A)    
B)    
C)   
D)   
E)

Question 18

Explain how the molecular orbital model accounts for the fact that NH3 lies higher (larger splitting) on the spectrochemical series than F-.

Accepted Answer

See Sectio

Question 19

A compound of which transition metal is responsible for the white color of most paper?

Accepted Answer

A)  chromium 
B)  titanium 
C)  zinc 
D)  nickel 
E)  copper 
A)  chromium 
B)  titanium 
C)  zinc 
D)  nickel 
E)  copper

Question 20

The complex ion Ni(NH3)62+ (two unpaired electrons) is classified as

Accepted Answer

A)  There is no way to tell. 
B)  strong field. 
C)  weak field. 
A)  There is no way to tell. 
B)  strong field. 
C)  weak field.

Oxygen is stored in mammalian tissue in which type of molecule?

This molecule is toxic because it has about 200 times the affinity for the Fe²⁺ in hemoglobin that oxygen does, causing asphyxiation if enough of it is present in the air.

Which of the following statements is true about the octahedral complexes of Ni²⁺?

The phenomenon called the __________ contraction is responsible for the great similarity in atomic size and chemistry between 4d and 5d elements.

How many unpaired electrons are found in Zn(H₂O)₆²⁺?

How many unpaired electrons are found in [CoCl₆]³^-(weak field)?

_ isomers and ___ isomers are classes of structural isomers.

Which of the following ligands are capable of linkage isomerism?

How many unpaired electrons are found in [Co(CN)₄]³^-(square planar)?

A complex ion is a square planar complex. It has a d⁸ electron configuration. What is the most reasonable d orbital scheme for this complex?

In which of the following complexes does the transition metal have a d⁸ configuration?

A metal ion in a high-spin octahedral complex has two more unpaired electrons than the same ion does in a low-spin octahedral complex. Which of the following could the metal ion be?

How many unpaired electrons are there in a complex ion having a d⁵ electron configuration and an octahedral geometry in the weak-field case?

The color of a transition metal complex results from

How many of the following compounds exhibit geometric isomers? I.Pd(NH₃)₂Br₂ (square planar) II.[Co(NH₃)₂]Cl₃ III.[Ni(NH₃)₄(NO₂)₂] IV.K₂[CoBr₄]

Fluoride ion ranks low in the spectrochemical series and produces a weak crystal field in complex ions. Based on this information, predict the number of unpaired electrons in [CrF₆]³^-.

Here are some crystal field representations of d electrons in an octahedral field: Choose the representation that fits the transition metal atom in the following species. -K₄Mn(CN)₆ (assume strong field)

Explain how the molecular orbital model accounts for the fact that NH₃ lies higher (larger splitting) on the spectrochemical series than F^-.

A compound of which transition metal is responsible for the white color of most paper?

The complex ion Ni(NH₃)₆²⁺ (two unpaired electrons) is classified as

Atoms, Molecules, and Ions

Stoichiometry

Chemical Reactions and Solutions Stoichiometry

Gases

Chemical Equilibrium

Acids and Bases

Applications of Aqueous Equilibria

Energy, Enthalpy, and Thermochemistry

Spontaneity, Entropy, and Free Energy

Electrochemistry

Quantum Mechanics and Atomic Theory

Bonding: General Concepts

Covalent Bonding: Orbitals

Chemical Kinetics

Liquids and Solids

Properties of Solutions

The Representative Elements

The Nucleus: a Chemists View

Organic and Biochemical Molecules

Filters

Exam 19: Transition Metals and Coordination Chemistry

Oxygen is stored in mammalian tissue in which type of molecule?

This molecule is toxic because it has about 200 times the affinity for the Fe2+ in hemoglobin that oxygen does, causing asphyxiation if enough of it is present in the air.

Which of the following statements is true about the octahedral complexes of Ni2+?

The phenomenon called the __________ contraction is responsible for the great similarity in atomic size and chemistry between 4d and 5d elements.

How many unpaired electrons are found in Zn(H2O)62+?

How many unpaired electrons are found in [CoCl6]3- (weak field)?

_____ isomers and _______ isomers are classes of structural isomers.

Which of the following ligands are capable of linkage isomerism?

How many unpaired electrons are found in [Co(CN)4]3- (square planar)?

A complex ion is a square planar complex. It has a d8 electron configuration. What is the most reasonable d orbital scheme for this complex?

In which of the following complexes does the transition metal have a d8 configuration?

A metal ion in a high-spin octahedral complex has two more unpaired electrons than the same ion does in a low-spin octahedral complex. Which of the following could the metal ion be?

How many unpaired electrons are there in a complex ion having a d5 electron configuration and an octahedral geometry in the weak-field case?

The color of a transition metal complex results from

How many of the following compounds exhibit geometric isomers? I.Pd(NH3)2Br2 (square planar) II.[Co(NH3)2]Cl3 III.[Ni(NH3)4(NO2)2] IV.K2[CoBr4]

Fluoride ion ranks low in the spectrochemical series and produces a weak crystal field in complex ions. Based on this information, predict the number of unpaired electrons in [CrF6]3-.

Here are some crystal field representations of d electrons in an octahedral field: Choose the representation that fits the transition metal atom in the following species. -K4Mn(CN)6 (assume strong field)

Explain how the molecular orbital model accounts for the fact that NH3 lies higher (larger splitting) on the spectrochemical series than F-.

A compound of which transition metal is responsible for the white color of most paper?

The complex ion Ni(NH3)62+ (two unpaired electrons) is classified as

Atoms, Molecules, and Ions

Stoichiometry

Chemical Reactions and Solutions Stoichiometry

Gases

Chemical Equilibrium

Acids and Bases

Applications of Aqueous Equilibria

Energy, Enthalpy, and Thermochemistry

Spontaneity, Entropy, and Free Energy

Electrochemistry

Quantum Mechanics and Atomic Theory

Bonding: General Concepts

Covalent Bonding: Orbitals

Chemical Kinetics

Liquids and Solids

Properties of Solutions

The Representative Elements

The Nucleus: a Chemists View

Organic and Biochemical Molecules

Filters

This molecule is toxic because it has about 200 times the affinity for the Fe²⁺ in hemoglobin that oxygen does, causing asphyxiation if enough of it is present in the air.

Which of the following statements is true about the octahedral complexes of Ni²⁺?

How many unpaired electrons are found in Zn(H₂O)₆²⁺?

How many unpaired electrons are found in [CoCl₆]³^-(weak field)?

_ isomers and ___ isomers are classes of structural isomers.

How many unpaired electrons are found in [Co(CN)₄]³^-(square planar)?

A complex ion is a square planar complex. It has a d⁸ electron configuration. What is the most reasonable d orbital scheme for this complex?

In which of the following complexes does the transition metal have a d⁸ configuration?

How many unpaired electrons are there in a complex ion having a d⁵ electron configuration and an octahedral geometry in the weak-field case?

How many of the following compounds exhibit geometric isomers? I.Pd(NH₃)₂Br₂ (square planar) II.[Co(NH₃)₂]Cl₃ III.[Ni(NH₃)₄(NO₂)₂] IV.K₂[CoBr₄]

Fluoride ion ranks low in the spectrochemical series and produces a weak crystal field in complex ions. Based on this information, predict the number of unpaired electrons in [CrF₆]³^-.

Here are some crystal field representations of d electrons in an octahedral field: Choose the representation that fits the transition metal atom in the following species. -K₄Mn(CN)₆ (assume strong field)

Explain how the molecular orbital model accounts for the fact that NH₃ lies higher (larger splitting) on the spectrochemical series than F^-.

The complex ion Ni(NH₃)₆²⁺ (two unpaired electrons) is classified as