Question 1

Give the correct name for [Fe(CO)4].

Accepted Answer

A)  tetracarbonyliron(0) 
B)  iron carbon monoxide 
C)  carbonylferrate(4) 
D)  tetracarbonylferrate(0) 
E)  iron carbonyl 
A)  tetracarbonyliron(0) 
B)  iron carbon monoxide 
C)  carbonylferrate(4) 
D)  tetracarbonylferrate(0) 
E)  iron carbonyl

Question 2

Choose the INCORRECT statement.

Accepted Answer

A)  Structures that are nonsuperimposable mirror images are enantiomers. 
B)  Enantiomers are chiral. 
C)  Enantiomers are optical isomers. 
D)  Hydrates are molecules which do not react with water. 
E)  Coordination complexes add the ligands one at a time. 
A)  Structures that are nonsuperimposable mirror images are enantiomers. 
B)  Enantiomers are chiral. 
C)  Enantiomers are optical isomers. 
D)  Hydrates are molecules which do not react with water. 
E)  Coordination complexes add the ligands one at a time.

Question 3

Choose the correct shape, weak or strong field, and number of unpaired electrons for [Co(NH3)6]3+.

Accepted Answer

A)  square planar, strong, 6 
B)  square planar, weak, 0 
C)  tetrahedral, strong, 0 
D)  octahedral, strong, 0 
E)  octahedral, weak, 6 
A)  square planar, strong, 6 
B)  square planar, weak, 0 
C)  tetrahedral, strong, 0 
D)  octahedral, strong, 0 
E)  octahedral, weak, 6

Question 4

Of the following complex ions, two appear violet in aqueous solution, one appears purple, one appears blue-green, and one appears yellow. Which is yellow?

Accepted Answer

A)  [Cr(H2O)6]3+ 
B)  [CrCl(H2O)5]2+ 
C)  [CrCl(NH3)5]2+ 
D)  [CrCl2(NH3)4]+ 
E)  [Cr(NH3)6]3+ 
A)  [Cr(H2O)6]3+ 
B)  [CrCl(H2O)5]2+ 
C)  [CrCl(NH3)5]2+ 
D)  [CrCl2(NH3)4]+ 
E)  [Cr(NH3)6]3+

Question 5

Choose the INCORRECT statement.

Accepted Answer

A)  One popular chelating agent is EDTA. 
B)  [Cr(NH3)4Br]Cl and [Cr(NH3)4Cl]Br are examples of ionization isomerism. 
C)  [Zn(NH3)4][CuCl4] is an example of coordination isomerism. 
D)  A tetrahedral complex cannot have a geometric isomer. 
E)  Enantiomers are structural isomers. 
A)  One popular chelating agent is EDTA. 
B)  [Cr(NH3)4Br]Cl and [Cr(NH3)4Cl]Br are examples of ionization isomerism. 
C)  [Zn(NH3)4][CuCl4] is an example of coordination isomerism. 
D)  A tetrahedral complex cannot have a geometric isomer. 
E)  Enantiomers are structural isomers.

Question 6

Give the correct name for [Fe(CN)6]4-.

Accepted Answer

A)  hexayanoiron(II) 
B)  iron hexacyanide 
C)  hexacyanoferrate(II) 
D)  hexacyanide iron(II) 
E)  hexacyanoferrate(III) 
A)  hexayanoiron(II) 
B)  iron hexacyanide 
C)  hexacyanoferrate(II) 
D)  hexacyanide iron(II) 
E)  hexacyanoferrate(III)

Question 7

Choose the correct statement about isomers of [Pt(H2O)2(NH3)Cl]Br.

Accepted Answer

A)  I is cis, II is trans. 
B)  The two molecules are the same. 
C)  The two molecules are the same but one is turned over. 
D)  They are not isomers. 
E)  I is trans, II is cis. 
A)  I is cis, II is trans. 
B)  The two molecules are the same. 
C)  The two molecules are the same but one is turned over. 
D)  They are not isomers. 
E)  I is trans, II is cis.

Question 8

What is the correct IUPAC name for [AuCl4(H2O)2]-?

Accepted Answer

A)  tetrachlorodiaquaaurate(III) 
B)  tetrachlorodiaquaaurate(I) 
C)  tetrachlorodiaquagold(III) 
D)  tetrachlorodiaquagold(I) 
E)  tetrachlorodiaquagoldate(III) 
A)  tetrachlorodiaquaaurate(III) 
B)  tetrachlorodiaquaaurate(I) 
C)  tetrachlorodiaquagold(III) 
D)  tetrachlorodiaquagold(I) 
E)  tetrachlorodiaquagoldate(III)

Question 9

Choose the INCORRECT formula/name combination for ligands.

Accepted Answer

A)  H2O aqua 
B)  NH3 ammine 
C)  CO carbonyl 
D)  NO nitrito-N- 
E)  CH3NH2 methylamine 
A)  H2O aqua 
B)  NH3 ammine 
C)  CO carbonyl 
D)  NO nitrito-N- 
E)  CH3NH2 methylamine

Question 10

The two different compounds [Cu(NH3)4][Fe(CN)4(H2O)2] and [Cu(CN)4]Fe(NH3)4(H2O)2] are examples of ________.

Accepted Answer

A)  optical isomers 
B)  linkage isomers 
C)  ionization isomers 
D)  geometric isomers 
E)  coordination isomers 
A)  optical isomers 
B)  linkage isomers 
C)  ionization isomers 
D)  geometric isomers 
E)  coordination isomers

Question 11

A monodentate ligand can have only one lone pair of electrons.

Accepted Answer

A) True 
 B)False

Question 12

[Fe(CN)6]4- has how many unpaired electrons?

Accepted Answer

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

Question 13

The compound PtCl2(en)2 [en = H2NCH2NH2] is octahedral; therefore we know that:

Accepted Answer

A)  en must be a monodentate ligand 
B)  two moles of Cl- per mole of PtCl2(en)2 can be precipitated rapidly by the addition of Ag+ 
C)  the molecule is nonpolar 
D)  the compound can have cis and trans isomers 
E)  Pt always has a coordination of 4 
A)  en must be a monodentate ligand 
B)  two moles of Cl- per mole of PtCl2(en)2 can be precipitated rapidly by the addition of Ag+ 
C)  the molecule is nonpolar 
D)  the compound can have cis and trans isomers 
E)  Pt always has a coordination of 4

Question 14

Which complex ion possesses the largest number of unpaired electrons?

Accepted Answer

A)  CoCl42- 
B)  Cr(NH3)62+ 
C)  Cu(NH3)42+ 
D)  Mn(CN)64- 
E)  Fe(H2O)63+ 
A)  CoCl42- 
B)  Cr(NH3)62+ 
C)  Cu(NH3)42+ 
D)  Mn(CN)64- 
E)  Fe(H2O)63+

Question 15

Which of the following metal ions can have coordination numbers of either 4 or 6?

Accepted Answer

A)  Ag+ 
B)  Ca2+ 
C)  Cu+ 
D)  Ni2+ 
E)  Au+ 
A)  Ag+ 
B)  Ca2+ 
C)  Cu+ 
D)  Ni2+ 
E)  Au+

Question 16

Which of the following ions is highest in the spectrochemical series: en, I-, SCN-, OH-, CN-

Accepted Answer

A)  en 
B)  SCN- 
C)  CN- 
D)  OH- 
E)  I- 
A)  en 
B)  SCN- 
C)  CN- 
D)  OH- 
E)  I-

Question 17

Which of the following ligand names is INCORRECT?

Accepted Answer

A)  F-/fluoro 
B)  OH-/hydroxo 
C)  NH3/ammino 
D)  NO2-/nitrito 
E)  SO42-/sulfato 
A)  F-/fluoro 
B)  OH-/hydroxo 
C)  NH3/ammino 
D)  NO2-/nitrito 
E)  SO42-/sulfato

Question 18

Unpaired electrons cause a complex ion to be diamagnetic.

Accepted Answer

A) True 
 B)False

Question 19

Choose the INCORRECT formula/name combination for ligands.

Accepted Answer

A)  C5H5N pyridine 
B)  F- fluoro 
C)  Cl- chloro 
D)  OH- hydroxo 
E)  I- iodino 
A)  C5H5N pyridine 
B)  F- fluoro 
C)  Cl- chloro 
D)  OH- hydroxo 
E)  I- iodino

Question 20

Choose the correct shape, weak or strong field, and number of unpaired electrons for [Co(NH3)4]2+.

Accepted Answer

A)  octahedral, weak, 3 
B)  octahedral, strong, 3 
C)  square planar, strong, 1 
D)  tetrahedral, weak, 1 
E)  tetrahedral, strong, 1 
A)  octahedral, weak, 3 
B)  octahedral, strong, 3 
C)  square planar, strong, 1 
D)  tetrahedral, weak, 1 
E)  tetrahedral, strong, 1

Exam 24: Complex Ions and Coordination Compounds

Give the correct name for [Fe(CO)4].

Choose the INCORRECT statement.

Choose the correct shape, weak or strong field, and number of unpaired electrons for [Co(NH3)6]3+.

Of the following complex ions, two appear violet in aqueous solution, one appears purple, one appears blue-green, and one appears yellow. Which is yellow?

Choose the INCORRECT statement.

Give the correct name for [Fe(CN)6]4-.

Choose the correct statement about isomers of [Pt(H2O)2(NH3)Cl]Br.

What is the correct IUPAC name for [AuCl4(H2O)2]-?

Choose the INCORRECT formula/name combination for ligands.

The two different compounds [Cu(NH3)4][Fe(CN)4(H2O)2] and [Cu(CN)4]Fe(NH3)4(H2O)2] are examples of ________.

A monodentate ligand can have only one lone pair of electrons.

[Fe(CN)6]4- has how many unpaired electrons?

The compound PtCl2(en)2 [en = H2NCH2NH2] is octahedral; therefore we know that:

Which complex ion possesses the largest number of unpaired electrons?

Which of the following metal ions can have coordination numbers of either 4 or 6?

Which of the following ions is highest in the spectrochemical series: en, I-, SCN-, OH-, CN-

Which of the following ligand names is INCORRECT?

Unpaired electrons cause a complex ion to be diamagnetic.

Choose the INCORRECT formula/name combination for ligands.

Choose the correct shape, weak or strong field, and number of unpaired electrons for [Co(NH3)4]2+.

Matter - Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

The Periodic Table and Some Atomic Properties

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Additional Aspects

Intermolecular Forces: Liquids and Solids

Solutions and Their Physical Properties

Chemical Kinetics

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Spontaneous Change: Entropy and Free Energy

Electrochemistry

Main Group Elements I: Groups 1, 2, 13, and 14

Main Group Elements II: Groups 18, 17, 16, 15, and Hydrogen

The Transition Elements

Nuclear Chemistry 1-41

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

Choose the correct shape, weak or strong field, and number of unpaired electrons for [Co(NH₃)₆]³⁺.

Choose the correct statement about isomers of [Pt(H₂O)₂(NH₃)Cl]Br.

What is the correct IUPAC name for [AuCl₄(H₂O)₂]^-?

The two different compounds [Cu(NH₃)₄][Fe(CN)₄(H₂O)₂] and [Cu(CN)₄]Fe(NH₃)₄(H₂O)₂] are examples of ________.

The compound PtCl₂(en)₂ [en = H₂NCH₂NH₂] is octahedral; therefore we know that:

Choose the correct shape, weak or strong field, and number of unpaired electrons for [Co(NH₃)₄]²⁺.