Question 1

EDTA is an example of a ______ ligand.

Accepted Answer

A)  hexadentate 
B)  bidentate 
C)  octadentate 
D)  tetradentate 
E)  tridentate
F) unidentate 
A)  hexadentate 
B)  bidentate 
C)  octadentate 
D)  tetradentate 
E)  tridentate
F) unidentate

Question 2

How many d electrons are present on the metal ion in the complex ion PtCl62-?

Accepted Answer

A)  3 
B)  8 
C)  2 
D)  4 
E)  6 
A)  3 
B)  8 
C)  2 
D)  4 
E)  6

Question 3

A d6 ion (Fe2+) is complexed with six strong-field ligands (for example, SCN-). What is the number of unpaired electrons in this complex?

Accepted Answer

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

Question 4

Carboxyhemoglobin is formed when __________ prevents the normal uptake of oxygen in the blood.

Accepted Answer

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

Question 5

The corrosion of which transition metal results in a characteristic green patina?

Accepted Answer

A)  lead 
B)  copper 
C)  chromium 
D)  silver 
E)  iron 
A)  lead 
B)  copper 
C)  chromium 
D)  silver 
E)  iron

Question 6

The complex FeL62+, where L is a neutral ligand, is known to be diamagnetic. How many d electrons are there in this complex ion?

Accepted Answer

A)  7 
B)  8 
C)  6 
D)  4 
E)  5 
A)  7 
B)  8 
C)  6 
D)  4 
E)  5

Question 7

A coordination compound of Cu2+ can be described as Cu(NH3)xSO4 and is known to contain 29.9% NH3. What is the value of x?

Accepted Answer

A)  6 
B)  3 
C)  4 
D)  2 
E)  none of these 
A)  6 
B)  3 
C)  4 
D)  2 
E)  none of these

Question 8

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.
-Fe(OH2)63+ (assume weak field)

Accepted Answer

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

Question 9

For which of the following metal ions would there be no distinction between low spin and high spin in octahedral complexes?

Accepted Answer

A)  Mn2+ 
B)  Fe2+ 
C)  Mn3+ 
D)  Cu2+ 
E)  Fe3+ 
A)  Mn2+ 
B)  Fe2+ 
C)  Mn3+ 
D)  Cu2+ 
E)  Fe3+

Question 10

Which metal ion has a d6 electron configuration?

Accepted Answer

A)  Ti2+ 
B)  Mn2+ 
C)  Ni2+ 
D)  Fe3+ 
E)  Co3+ 
A)  Ti2+ 
B)  Mn2+ 
C)  Ni2+ 
D)  Fe3+ 
E)  Co3+

Question 11

Which of the metal ions in the following complex ions has a d5 electron configuration?

Accepted Answer

A)  [FeCl6]4- 
B)  [Cr(CN)6]3- 
C)  [Ti(H2O)6]2+ 
D)  [Ni(NH3)6]3+ 
E)  [Fe(CN)6]3- 
A)  [FeCl6]4- 
B)  [Cr(CN)6]3- 
C)  [Ti(H2O)6]2+ 
D)  [Ni(NH3)6]3+ 
E)  [Fe(CN)6]3-

Question 12

Transition metals show great similarities both within a given period and within a given vertical group.

Accepted Answer

A) True 
 B)False

Question 13

Which transition metal can exist in all oxidation states from +2 to +7?

Accepted Answer

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

Question 14

Which has the greater number of unpaired electrons? 
I. square planar Ni(CN)42-
II. tetrahedral FeCl4-

Accepted Answer

A)  I 
B)  II 
C)  Neither I nor II has any unpaired electrons. 
D)  More information is needed. 
E)  Both I and II have the same (nonzero) number of unpaired electrons. 
A)  I 
B)  II 
C)  Neither I nor II has any unpaired electrons. 
D)  More information is needed. 
E)  Both I and II have the same (nonzero) number of unpaired electrons.

Question 15

Which of the following is a d9 ion?

Accepted Answer

A)  Cu2+ 
B)  Zn2+ 
C)  Fe2+ 
D)  Cr3+ 
E)  Cu+ 
A)  Cu2+ 
B)  Zn2+ 
C)  Fe2+ 
D)  Cr3+ 
E)  Cu+

Question 16

In _________, all bonds are the same, but the spatial arrangements of atoms are different.

Accepted Answer

The answer of In _________, all bonds are the same,...

Question 17

Which of the following is a d2 ion?

Accepted Answer

A)  Mn3+ 
B)  Ti+ 
C)  Fe3+ 
D)  Cr2+ 
E)  Ti2+ 
A)  Mn3+ 
B)  Ti+ 
C)  Fe3+ 
D)  Cr2+ 
E)  Ti2+

Question 18

The empirical formula of a compound with a mass percent composition of 6.78% H, 31.43% N, 39.76% Cl, and 22.03% Co is consistent with which of the following complexes?

Accepted Answer

A)  [Co(NH3)4Cl2]Cl 
B)  [Co(NH3)3Cl3] 
C)  [Co(NH3)6]Cl3 
D)  [Co(NH3)5Cl]Cl2 
E)  none of these 
A)  [Co(NH3)4Cl2]Cl 
B)  [Co(NH3)3Cl3] 
C)  [Co(NH3)6]Cl3 
D)  [Co(NH3)5Cl]Cl2 
E)  none of these

Question 19

For the process Co(NH3)5Cl2+ + Cl- F1F1F1S1F1F1F10 Co(NH3)4Cl2+ + NH3, what would be the ratio of cis to trans isomers in the product?

Accepted Answer

A)  4:1 
B)  1:1 
C)  2:1 
D)  1:2 
E)  1:4 
A)  4:1 
B)  1:1 
C)  2:1 
D)  1:2 
E)  1:4

Question 20

How many unpaired electrons are found in NiBr42- (tetrahedral)?

Accepted Answer

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

EDTA is an example of a ______ ligand.

How many d electrons are present on the metal ion in the complex ion PtCl₆²^-?

A d⁶ ion (Fe²⁺) is complexed with six strong-field ligands (for example, SCN^-). What is the number of unpaired electrons in this complex?

Carboxyhemoglobin is formed when __________ prevents the normal uptake of oxygen in the blood.

The corrosion of which transition metal results in a characteristic green patina?

The complex FeL₆²⁺, where L is a neutral ligand, is known to be diamagnetic. How many d electrons are there in this complex ion?

A coordination compound of Cu²⁺ can be described as Cu(NH₃)_xSO₄ and is known to contain 29.9% NH₃. What is the value of x?

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. -Fe(OH₂)₆³⁺ (assume weak field)

For which of the following metal ions would there be no distinction between low spin and high spin in octahedral complexes?

Which metal ion has a d⁶ electron configuration?

Which of the metal ions in the following complex ions has a d⁵ electron configuration?

Transition metals show great similarities both within a given period and within a given vertical group.

Which transition metal can exist in all oxidation states from +2 to +7?

Which has the greater number of unpaired electrons? I. square planar Ni(CN)₄²^- II. tetrahedral FeCl₄^-

Which of the following is a d⁹ ion?

In _________, all bonds are the same, but the spatial arrangements of atoms are different.

Which of the following is a d² ion?

The empirical formula of a compound with a mass percent composition of 6.78% H, 31.43% N, 39.76% Cl, and 22.03% Co is consistent with which of the following complexes?

For the process Co(NH₃)₅Cl²⁺ + Cl^-  Co(NH₃)₄Cl₂⁺ + NH₃, what would be the ratio of cis to trans isomers in the product?

How many unpaired electrons are found in NiBr₄²^- (tetrahedral)?

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Exam 19: Transition Metals and Coordination Chemistry

EDTA is an example of a ______ ligand.

How many d electrons are present on the metal ion in the complex ion PtCl62-?

A d6 ion (Fe2+) is complexed with six strong-field ligands (for example, SCN-). What is the number of unpaired electrons in this complex?

Carboxyhemoglobin is formed when __________ prevents the normal uptake of oxygen in the blood.

The corrosion of which transition metal results in a characteristic green patina?

The complex FeL62+, where L is a neutral ligand, is known to be diamagnetic. How many d electrons are there in this complex ion?

A coordination compound of Cu2+ can be described as Cu(NH3)xSO4 and is known to contain 29.9% NH3. What is the value of x?

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. -Fe(OH2)63+ (assume weak field)

For which of the following metal ions would there be no distinction between low spin and high spin in octahedral complexes?

Which metal ion has a d6 electron configuration?

Which of the metal ions in the following complex ions has a d5 electron configuration?

Transition metals show great similarities both within a given period and within a given vertical group.

Which transition metal can exist in all oxidation states from +2 to +7?

Which has the greater number of unpaired electrons? I. square planar Ni(CN)42- II. tetrahedral FeCl4-

Which of the following is a d9 ion?

In _________, all bonds are the same, but the spatial arrangements of atoms are different.

Which of the following is a d2 ion?

The empirical formula of a compound with a mass percent composition of 6.78% H, 31.43% N, 39.76% Cl, and 22.03% Co is consistent with which of the following complexes?

For the process Co(NH3)5Cl2+ + Cl-  Co(NH3)4Cl2+ + NH3, what would be the ratio of cis to trans isomers in the product?

How many unpaired electrons are found in NiBr42- (tetrahedral)?

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

How many d electrons are present on the metal ion in the complex ion PtCl₆²^-?

A d⁶ ion (Fe²⁺) is complexed with six strong-field ligands (for example, SCN^-). What is the number of unpaired electrons in this complex?

The complex FeL₆²⁺, where L is a neutral ligand, is known to be diamagnetic. How many d electrons are there in this complex ion?

A coordination compound of Cu²⁺ can be described as Cu(NH₃)_xSO₄ and is known to contain 29.9% NH₃. What is the value of x?

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. -Fe(OH₂)₆³⁺ (assume weak field)

Which metal ion has a d⁶ electron configuration?

Which of the metal ions in the following complex ions has a d⁵ electron configuration?

Which has the greater number of unpaired electrons? I. square planar Ni(CN)₄²^- II. tetrahedral FeCl₄^-

Which of the following is a d⁹ ion?

Which of the following is a d² ion?

For the process Co(NH₃)₅Cl²⁺ + Cl^-  Co(NH₃)₄Cl₂⁺ + NH₃, what would be the ratio of cis to trans isomers in the product?

How many unpaired electrons are found in NiBr₄²^- (tetrahedral)?