Question 1

In the complex ion [Fe(CN)6]4-, what is the oxidation number of Fe?

Accepted Answer

A)  +1 
B)  +2 
C)  +3 
D)  -4 
E)  +6 
A)  +1 
B)  +2 
C)  +3 
D)  -4 
E)  +6

Question 2

Cisplatin complexes are

Accepted Answer

A)  used in the extraction of silver and gold. 
B)  effective antidotes for heavy metal poisoning (e.g., Pb2+ and Hg2+). 
C)  used to provide nutrients for plants. 
D)  used to prevent eutrophication of lakes. 
E)  effective antitumor agents. 
A)  used in the extraction of silver and gold. 
B)  effective antidotes for heavy metal poisoning (e.g., Pb2+ and Hg2+). 
C)  used to provide nutrients for plants. 
D)  used to prevent eutrophication of lakes. 
E)  effective antitumor agents.

Question 3

Which of the following ligands is most likely to form a high-spin octahedral complex with cobalt(II)?

Accepted Answer

A)  CN- 
B)  en (ethylenediamine) 
C)  NH3 
D)  CO 
E)  I- 
A)  CN- 
B)  en (ethylenediamine) 
C)  NH3 
D)  CO 
E)  I-

Question 4

Which of the following metals is capable of forming complexes spanning the largest range of oxidation numbers?

Accepted Answer

A)  Cu 
B)  Sc 
C)  Fe 
D)  Mn 
E)  Ni 
A)  Cu 
B)  Sc 
C)  Fe 
D)  Mn 
E)  Ni

Question 5

What is the electron configuration of a ground-state Zn2+ ion?

Accepted Answer

A)  1s22s22p63s23p64s13d9 
B)  1s22s22p63s23p64s14d9 
C)  1s22s22p63s23p64s23d8 
D)  1s22s22p63s23p64s24d8 
E)  1s22s22p63s23p63d10 
A)  1s22s22p63s23p64s13d9 
B)  1s22s22p63s23p64s14d9 
C)  1s22s22p63s23p64s23d8 
D)  1s22s22p63s23p64s24d8 
E)  1s22s22p63s23p63d10

Question 6

In the spectrochemical series, which one of the following ligands has the strongest field?

Accepted Answer

A)  H2O 
B)  CN- 
C)  NH3 
D)  OH- 
E)  Cl- 
A)  H2O 
B)  CN- 
C)  NH3 
D)  OH- 
E)  Cl-

Question 7

What is the electron configuration of a ground-state Cu+ ion?

Accepted Answer

A)  [Ar]3d10 
B)  [Ar]4d10 
C)  [Ar]3d9 
D)  [Ar]4d9 
E)  None of these choices. 
A)  [Ar]3d10 
B)  [Ar]4d10 
C)  [Ar]3d9 
D)  [Ar]4d9 
E)  None of these choices.

Question 8

Which of the following geometries is not common in transition-metal complex ions?

Accepted Answer

A)  Tetrahedral 
B)  Octahedral 
C)  Linear 
D)  Trigonal planar 
E)  Square planar 
A)  Tetrahedral 
B)  Octahedral 
C)  Linear 
D)  Trigonal planar 
E)  Square planar

Question 9

What is the difference between a coordination compound and a complex ion?

Accepted Answer

A coordination compound genera

Question 10

Ethylenediaminetetraacetic acid (EDTA) is

Accepted Answer

A)  not useful as a chelating agent. 
B)  an effective antidote for heavy metal poisoning (e.g., Pb2+ and Hg2+). 
C)  a monodentate ligand. 
D)  known to form unstable complex ions with Fe3+, Hg2+, and Zn2+. 
E)  known to form complexes with platinum that inhibit the growth of cancerous cells. 
A)  not useful as a chelating agent. 
B)  an effective antidote for heavy metal poisoning (e.g., Pb2+ and Hg2+). 
C)  a monodentate ligand. 
D)  known to form unstable complex ions with Fe3+, Hg2+, and Zn2+. 
E)  known to form complexes with platinum that inhibit the growth of cancerous cells.

Question 11

Why is the +2 oxidation state so common among transition elements?

Accepted Answer

The outermost electr

Question 12

Which of the following ions is paramagnetic?

Accepted Answer

A)  Sc3+ 
B)  Ti4+ 
C)  Mn7+ 
D)  Ni2+ 
E)  V5+ 
A)  Sc3+ 
B)  Ti4+ 
C)  Mn7+ 
D)  Ni2+ 
E)  V5+

Question 13

How many 3d electrons does a ground-state Nb3+ ion have?

Accepted Answer

A)  2 
B)  4 
C)  3 
D)  10 
E)  5 
A)  2 
B)  4 
C)  3 
D)  10 
E)  5

Question 14

The compound Rh(CO)(H)(PH3)2 forms cis and trans isomers. Use this information to predict the geometry of this complex isomer.

Accepted Answer

The complex has four ligands a

Question 15

Which statement is correct about coordination compounds?

Accepted Answer

A)  They consist only of nonmetals. 
B)  They contain ionic bonds. 
C)  They are formed by reactions of metal ions with groups of anions or polar molecules. 
D)  They contain only metals. 
A)  They consist only of nonmetals. 
B)  They contain ionic bonds. 
C)  They are formed by reactions of metal ions with groups of anions or polar molecules. 
D)  They contain only metals.

Question 16

Which of the following metals is capable of forming complexes spanning the smallest range of oxidation numbers?

Accepted Answer

A)  Cu 
B)  Sc 
C)  Fe 
D)  Mn 
E)  Ni 
A)  Cu 
B)  Sc 
C)  Fe 
D)  Mn 
E)  Ni

Question 17

What is the coordination number of cobalt in the complex ion [Co(en)Cl4]-? (en = ethylenediamine)

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  6 
E)  8 
A)  1 
B)  2 
C)  4 
D)  6 
E)  8

Question 18

What is the name of the molecules or ions that surround the metal in a complex ion?

Accepted Answer

A)  Chelaters 
B)  Donors 
C)  Acceptors 
D)  Coordinators 
E)  Ligands 
A)  Chelaters 
B)  Donors 
C)  Acceptors 
D)  Coordinators 
E)  Ligands

Question 19

How many 3d electrons does a ground-state Pd2+ ion have?

Accepted Answer

A)  8 
B)  10 
C)  9 
D)  7 
E)  6 
A)  8 
B)  10 
C)  9 
D)  7 
E)  6

Question 20

In a reaction between a metal ion and a group of anions or a polar molecule, the anions or polar molecule acts as a ________ ________.

Accepted Answer

The answer of In a reaction between a metal ion...

Exam 22: Coordination Chemistry

In the complex ion [Fe(CN)6]4-, what is the oxidation number of Fe?

Cisplatin complexes are

Which of the following ligands is most likely to form a high-spin octahedral complex with cobalt(II)?

Which of the following metals is capable of forming complexes spanning the largest range of oxidation numbers?

What is the electron configuration of a ground-state Zn2+ ion?

In the spectrochemical series, which one of the following ligands has the strongest field?

What is the electron configuration of a ground-state Cu+ ion?

Which of the following geometries is not common in transition-metal complex ions?

What is the difference between a coordination compound and a complex ion?

Ethylenediaminetetraacetic acid (EDTA) is

Why is the +2 oxidation state so common among transition elements?

Which of the following ions is paramagnetic?

How many 3d electrons does a ground-state Nb3+ ion have?

The compound Rh(CO)(H)(PH3)2 forms cis and trans isomers. Use this information to predict the geometry of this complex isomer.

Which statement is correct about coordination compounds?

Which of the following metals is capable of forming complexes spanning the smallest range of oxidation numbers?

What is the coordination number of cobalt in the complex ion [Co(en)Cl4]-? (en = ethylenediamine)

What is the name of the molecules or ions that surround the metal in a complex ion?

How many 3d electrons does a ground-state Pd2+ ion have?

In a reaction between a metal ion and a group of anions or a polar molecule, the anions or polar molecule acts as a ________ ________.

Chemistry: the Central Science

Atoms, Molecules, and Ions

Stoichiometry: Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

In the complex ion [Fe(CN)₆]^4-, what is the oxidation number of Fe?

What is the electron configuration of a ground-state Zn²⁺ ion?

What is the electron configuration of a ground-state Cu⁺ ion?

How many 3d electrons does a ground-state Nb³⁺ ion have?

The compound Rh(CO)(H)(PH₃)₂ forms cis and trans isomers. Use this information to predict the geometry of this complex isomer.

What is the coordination number of cobalt in the complex ion [Co(en)Cl₄]^-? (en = ethylenediamine)

How many 3d electrons does a ground-state Pd²⁺ ion have?

In a reaction between a metal ion and a group of anions or a polar molecule, the anions or polar molecule acts as a .