Question 1

List three of the ten transition metals required for human life.

Accepted Answer

Any three

Question 2

Trans-[Fe(H2O)2Cl4]2- must be ________.

Accepted Answer

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

Question 3

Complexes containing metals with d10 electron configurations are typically white/colorless because ________.

Accepted Answer

A) there is no d electron that can be promoted via the absorption of visible light 
B) the empty d orbitals absorb all of the visible wavelengths 
C) there are no d electrons to form bonds to ligands 
D) a complex must be charged to be colored 
E) d electrons must be emitted by the complex in order for it to appear colored 
A) there is no d electron that can be promoted via the absorption of visible light 
B) the empty d orbitals absorb all of the visible wavelengths 
C) there are no d electrons to form bonds to ligands 
D) a complex must be charged to be colored 
E) d electrons must be emitted by the complex in order for it to appear colored

Question 4

The correct name for [Ni(NH3)6](NO3)3 ________.

Accepted Answer

A) dinitrohexaamminenickel (II) 
B) hexaamminenickel (III)trinitrate 
C) dinitrohexaamminenickelate (III) 
D) hexaamminenickel (II)nitrate 
E) hexaamminenickel (III)nitrate 
A) dinitrohexaamminenickel (II) 
B) hexaamminenickel (III)trinitrate 
C) dinitrohexaamminenickelate (III) 
D) hexaamminenickel (II)nitrate 
E) hexaamminenickel (III)nitrate

Question 5

Does either or both cis- or trans-[Mn(en)2Br2] have optical isomers?

Accepted Answer

A) cis only 
B) trans only 
C) both cis and trans 
D) neither cis nor trans 
E) [Mn(en)2Br2] does not exhibit cis-trans isomerism. 
A) cis only 
B) trans only 
C) both cis and trans 
D) neither cis nor trans 
E) [Mn(en)2Br2] does not exhibit cis-trans isomerism.

Question 6

The coordination number of cobalt in CoCl3 ∙ 6NH3 is ________.

Accepted Answer

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

Question 7

Consider a complex in which manganese (III)is bonded to six identical ligands.Which one of the following ligands will result in the smallest value of Δ?

Accepted Answer

A)    
B) NH3 
C) H2O 
D) F- 
E) CN- 
A)    
B) NH3 
C) H2O 
D) F- 
E) CN-

Question 8

A substance with unpaired electrons will be ________.

Accepted Answer

A) slightly attracted to a magnet 
B) slightly repelled by a magnet 
C) permanently magnetic 
D) brightly colored 
E) nonmetallic 
A) slightly attracted to a magnet 
B) slightly repelled by a magnet 
C) permanently magnetic 
D) brightly colored 
E) nonmetallic

Question 9

Name the compound,Cu(H2O)42+.

Accepted Answer

Question 10

How many isomers exist for the octahedral complex ion [Co(NH3)4F2]+?

Accepted Answer

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

Question 11

What is the metal ion in the porphyrin of heme?

Accepted Answer

A) iron 
B) calcium 
C) molybdenum 
D) magnesium 
E) chlorophyll 
A) iron 
B) calcium 
C) molybdenum 
D) magnesium 
E) chlorophyll

Question 12

Paramagnetic solids ________.

Accepted Answer

A) have atoms with one or more unpaired electrons 
B) show very slight magnetic character when placed in a magnetic field 
C) have atoms with randomly oriented magnetic moments 
D) have atoms with strongly aligned electrons when placed in a magnetic field 
E) both A and D 
A) have atoms with one or more unpaired electrons 
B) show very slight magnetic character when placed in a magnetic field 
C) have atoms with randomly oriented magnetic moments 
D) have atoms with strongly aligned electrons when placed in a magnetic field 
E) both A and D

Question 13

The correct name for Na3[CoF6] is ________.

Accepted Answer

A) trisodium hexakisfluorocobalt (III) 
B) trisodium hexakisfluorocobalt (II) 
C) trisodium hexakisfluorocobalt (IV) 
D) sodium hexafluorocobaltate (III) 
E) sodium hexafluorocobaltate (IV) 
A) trisodium hexakisfluorocobalt (III) 
B) trisodium hexakisfluorocobalt (II) 
C) trisodium hexakisfluorocobalt (IV) 
D) sodium hexafluorocobaltate (III) 
E) sodium hexafluorocobaltate (IV)

Question 14

What is the oxidation state of chromium in [Cr(H2O)4Cl2]+?

Accepted Answer

A) 0 
B) +2 
C) +3 
D) -2 
E) -3 
A) 0 
B) +2 
C) +3 
D) -2 
E) -3

Question 15

What is the most common geometry found in four-coordinate complexes?

Accepted Answer

A) square planar 
B) octahedral 
C) tetrahedral 
D) icosahedral 
E) trigonal bipyramidal 
A) square planar 
B) octahedral 
C) tetrahedral 
D) icosahedral 
E) trigonal bipyramidal

Question 16

Which one of the following is not true about transition metals?

Accepted Answer

A) They frequently have more than one common oxidation state. 
B) Their compounds are frequently colored. 
C) Their compounds frequently exhibit magnetic properties. 
D) They are found in the d-block of the periodic table. 
E) They typically have low melting points. 
A) They frequently have more than one common oxidation state. 
B) Their compounds are frequently colored. 
C) Their compounds frequently exhibit magnetic properties. 
D) They are found in the d-block of the periodic table. 
E) They typically have low melting points.

Question 17

Transition metal ions with empty valence orbitals act as ________.

Accepted Answer

The answer of Transition metal ions with empty valence orbitals...

Question 18

Green and orange are complementary colors.

Accepted Answer

A) True 
 B)False

Question 19

What is the coordination number of chromium in [Cr(H2O)4Cl2]+?

Accepted Answer

A) 8 
B) 6 
C) 4 
D) 2 
E) 12 
A) 8 
B) 6 
C) 4 
D) 2 
E) 12

Question 20

Two compounds have the same formula and contain an   ligand.In one compound the   ligand is bonded to the metal atom via the N atom and in the other it is bonded via the S atom.These two compounds are examples of ________ isomers.

Accepted Answer

The answer of Two compounds have the same formula and...

Exam 23: Transition Metals and Coordination Chemistry

List three of the ten transition metals required for human life.

Trans-[Fe(H2O)2Cl4]2- must be ________.

Complexes containing metals with d10 electron configurations are typically white/colorless because ________.

The correct name for [Ni(NH3)6](NO3)3 ________.

Does either or both cis- or trans-[Mn(en)2Br2] have optical isomers?

The coordination number of cobalt in CoCl3 ∙ 6NH3 is ________.

Consider a complex in which manganese (III)is bonded to six identical ligands.Which one of the following ligands will result in the smallest value of Δ?

A substance with unpaired electrons will be ________.

Name the compound,Cu(H2O)42+.

How many isomers exist for the octahedral complex ion [Co(NH3)4F2]+?

What is the metal ion in the porphyrin of heme?

Paramagnetic solids ________.

The correct name for Na3[CoF6] is ________.

What is the oxidation state of chromium in [Cr(H2O)4Cl2]+?

What is the most common geometry found in four-coordinate complexes?

Which one of the following is not true about transition metals?

Transition metal ions with empty valence orbitals act as ________.

Green and orange are complementary colors.

What is the coordination number of chromium in [Cr(H2O)4Cl2]+?

Two compounds have the same formula and contain an ligand.In one compound the ligand is bonded to the metal atom via the N atom and in the other it is bonded via the S atom.These two compounds are examples of ________ isomers.

Introduction: Matter, energy, and Measurement

Atoms, molecules, and Ions

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

The Chemistry of Life: Organic and Biological Chemistry

Filters

Trans-[Fe(H₂O)₂Cl₄]^2- must be ________.

Complexes containing metals with d¹⁰ electron configurations are typically white/colorless because ________.

The correct name for [Ni(NH₃)₆](NO₃)₃ ________.

Does either or both cis- or trans-[Mn(en)₂Br₂] have optical isomers?

The coordination number of cobalt in CoCl₃ ^∙ 6NH₃ is ________.

Name the compound,Cu(H₂O)₄²⁺.

How many isomers exist for the octahedral complex ion [Co(NH₃)₄F₂]⁺?

The correct name for Na₃[CoF₆] is ________.

What is the oxidation state of chromium in [Cr(H₂O)₄Cl₂]⁺?

What is the coordination number of chromium in [Cr(H₂O)₄Cl₂]⁺?