Question 1

The most common oxidation state for ions of the inner transition elements is:

Accepted Answer

A)  +2 
B)  +3 
C)  +4 
D)  +5 
E)  +7 
A)  +2 
B)  +3 
C)  +4 
D)  +5 
E)  +7

Question 2

The inner transition series of elements arise from the filling of f orbitals.

Accepted Answer

A) True 
 B)False

Question 3

Aluminum reacts with oxygen in the air to form a protective oxide coating. Silver also reacts with compounds in air to form a black coating. What substance is formed?

Accepted Answer

A)  silver oxide 
B)  silver chloride 
C)  silver sulfide 
D)  silver carbonate 
E)  silver nitride 
A)  silver oxide 
B)  silver chloride 
C)  silver sulfide 
D)  silver carbonate 
E)  silver nitride

Question 4

Which of the following ions could exist in either the high-spin or low-spin state in an octahedral complex?

Accepted Answer

A)  Sc3+ 
B)  Ni2+ 
C)  Mn2+ 
D)  Ti4+ 
E)  Zn2+ 
A)  Sc3+ 
B)  Ni2+ 
C)  Mn2+ 
D)  Ti4+ 
E)  Zn2+

Question 5

Which one of the following has the ground state electron configuration [Ar]3d104s1?

Accepted Answer

A)  In+ 
B)  Cd2+ 
C)  Ag+ 
D)  Ag 
E)  Cu 
A)  In+ 
B)  Cd2+ 
C)  Ag+ 
D)  Ag 
E)  Cu

Question 6

10.0 mL of a 0.100 mol/L solution of a metal ion M2+ is mixed with 10.0 mL of a 0.100 mol/L solution of a ligand L. A reaction occurs in which the product is ML32+. Approximately, what is the maximum concentration of ML32+, in mol/L, which could result from this reaction?

Accepted Answer

A)  0.100 
B)  0.050 
C)  0.033 
D)  0.025 
E)  0.017 
A)  0.100 
B)  0.050 
C)  0.033 
D)  0.025 
E)  0.017

Question 7

Which of the following ligands is most likely to form a low-spin octahedral complex with iron(III)?

Accepted Answer

A)  Cl¯ 
B)  H2O 
C)  NH3 
D)  OH¯ 
E)  CO 
A)  Cl¯ 
B)  H2O 
C)  NH3 
D)  OH¯ 
E)  CO

Question 8

In the presence of a strong octahedral ligand field, the number of unpaired electrons in Co(III) will be

Accepted Answer

A)  0 
B)  2 
C)  4 
D)  6 
E)  None of these choices is correct. 
A)  0 
B)  2 
C)  4 
D)  6 
E)  None of these choices is correct.

Question 9

Write the formula for diamminedichloroethylenediaminecobalt(III) bromide.

Accepted Answer

A)  [CoCl2(en)(NH3)2]Br 
B)  [CoCl2(en)(NH3)2]Br2 
C)  [CoCl2(en)2(NH3)2]Br 
D)  [CoCl2(en)2(NH3)2]Br2 
E)  None of these choices is correct. 
A)  [CoCl2(en)(NH3)2]Br 
B)  [CoCl2(en)(NH3)2]Br2 
C)  [CoCl2(en)2(NH3)2]Br 
D)  [CoCl2(en)2(NH3)2]Br2 
E)  None of these choices is correct.

Question 10

Which of the following atoms has the biggest radius?

Accepted Answer

A)  Ti 
B)  Cr 
C)  Fe 
D)  Ni 
E)  Zn 
A)  Ti 
B)  Cr 
C)  Fe 
D)  Ni 
E)  Zn

Question 11

A certain transition element has the stable oxidation states of +2, +3, +4, +5, and +6. In which state will the element be most likely to form an ionic bond with chlorine?

Accepted Answer

A)  +2 
B)  +3 
C)  +4 
D)  +5 
E)  +6 
A)  +2 
B)  +3 
C)  +4 
D)  +5 
E)  +6

Question 12

Give one important use of the following metals or their compounds.
A) chromium
B) manganese
C) mercury
D) silver

Accepted Answer

a. protective/decorative chromium platin

Question 13

Apply the valence bond theory to predict the electronic structure and hybridization pattern of chromium in the complex ion Cr(NH3)63+.

Accepted Answer

The three d electrons of the Cr(III) wil

Question 14

Octahedral complexes can exhibit geometric, optical and linkage isomerism.

Accepted Answer

A) True 
 B)False

Question 15

Tetrahedral complexes can exhibit both optical and linkage isomerism.

Accepted Answer

A) True 
 B)False

Question 16

Give the systematic name for [CoCl3(H2O)]¯.

Accepted Answer

A)  cobalt(II) chloride monohydrate 
B)  aquatrichlorocobalt(II) 
C)  aquatrichlorocobaltate(II) 
D)  aquatrichlorocobaltite(I) 
E)  None of these choices is correct. 
A)  cobalt(II) chloride monohydrate 
B)  aquatrichlorocobalt(II) 
C)  aquatrichlorocobaltate(II) 
D)  aquatrichlorocobaltite(I) 
E)  None of these choices is correct.

Question 17

Chromium and manganese are among the transition elements that form several different oxides. Which of the following statements characterize these oxides?

Accepted Answer

A)  As the oxidation number on the metal increases, the valence-state electronegativity increases and the oxides change from acidic to basic. 
B)  As the oxidation number on the metal increases, the valence-state electronegativity increases and the oxides change from basic to acidic. 
C)  As the oxidation number on the metal increases, the valence-state electronegativity decreases and the oxides change from acidic to basic. 
D)  As the oxidation number on the metal increases, the valence-state electronegativity decreases and the oxides change from basic to acidic. 
E)  None of these choices is correct. 
A)  As the oxidation number on the metal increases, the valence-state electronegativity increases and the oxides change from acidic to basic. 
B)  As the oxidation number on the metal increases, the valence-state electronegativity increases and the oxides change from basic to acidic. 
C)  As the oxidation number on the metal increases, the valence-state electronegativity decreases and the oxides change from acidic to basic. 
D)  As the oxidation number on the metal increases, the valence-state electronegativity decreases and the oxides change from basic to acidic. 
E)  None of these choices is correct.

Question 18

Which of the following is considered a bidentate ligand?

Accepted Answer

A)  cyanide, CN¯ 
B)  thiocyanate, SCN¯ 
C)  oxalate, C2O42¯ 
D)  nitrite, NO2¯ 
E)  hydroxide, OH¯ 
A)  cyanide, CN¯ 
B)  thiocyanate, SCN¯ 
C)  oxalate, C2O42¯ 
D)  nitrite, NO2¯ 
E)  hydroxide, OH¯

Question 19

Which of the following transition elements can have an oxidation number of +7?

Accepted Answer

A)  V 
B)  Cr 
C)  Mn 
D)  Fe 
E)  Co 
A)  V 
B)  Cr 
C)  Mn 
D)  Fe 
E)  Co

Question 20

Consider the following structures (1 and 2 are octahedral; 3 and 4 are square planar).   Which one of the following statements about the above structures is correct?

Accepted Answer

A)  1 and 2 are superimposable. 
B)  1 and 2 are geometric isomers. 
C)  3 and 4 are structural isomers. 
D)  3 and 4 are optical isomers. 
E)  3 and 4 are geometric isomers. 
A)  1 and 2 are superimposable. 
B)  1 and 2 are geometric isomers. 
C)  3 and 4 are structural isomers. 
D)  3 and 4 are optical isomers. 
E)  3 and 4 are geometric isomers.

Exam 23: The Transition Elements and Their Coordination Compounds

The most common oxidation state for ions of the inner transition elements is:

The inner transition series of elements arise from the filling of f orbitals.

Aluminum reacts with oxygen in the air to form a protective oxide coating. Silver also reacts with compounds in air to form a black coating. What substance is formed?

Which of the following ions could exist in either the high-spin or low-spin state in an octahedral complex?

Which one of the following has the ground state electron configuration [Ar]3d104s1?

10.0 mL of a 0.100 mol/L solution of a metal ion M2+ is mixed with 10.0 mL of a 0.100 mol/L solution of a ligand L. A reaction occurs in which the product is ML32+. Approximately, what is the maximum concentration of ML32+, in mol/L, which could result from this reaction?

Which of the following ligands is most likely to form a low-spin octahedral complex with iron(III)?

In the presence of a strong octahedral ligand field, the number of unpaired electrons in Co(III) will be

Write the formula for diamminedichloroethylenediaminecobalt(III) bromide.

Which of the following atoms has the biggest radius?

A certain transition element has the stable oxidation states of +2, +3, +4, +5, and +6. In which state will the element be most likely to form an ionic bond with chlorine?

Give one important use of the following metals or their compounds. A) chromium B) manganese C) mercury D) silver

Apply the valence bond theory to predict the electronic structure and hybridization pattern of chromium in the complex ion Cr(NH3)63+.

Octahedral complexes can exhibit geometric, optical and linkage isomerism.

Tetrahedral complexes can exhibit both optical and linkage isomerism.

Give the systematic name for [CoCl3(H2O)]¯.

Chromium and manganese are among the transition elements that form several different oxides. Which of the following statements characterize these oxides?

Which of the following is considered a bidentate ligand?

Which of the following transition elements can have an oxidation number of +7?

Consider the following structures (1 and 2 are octahedral; 3 and 4 are square planar). Which one of the following statements about the above structures is correct?

Keys to the Study of Chemistry

The Components of Matter

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

Nuclear Reactions and Their Applications

Filters

Which one of the following has the ground state electron configuration [Ar]3d¹⁰4s¹?

10.0 mL of a 0.100 mol/L solution of a metal ion M²⁺ is mixed with 10.0 mL of a 0.100 mol/L solution of a ligand L. A reaction occurs in which the product is ML₃²⁺. Approximately, what is the maximum concentration of ML₃²⁺, in mol/L, which could result from this reaction?

Apply the valence bond theory to predict the electronic structure and hybridization pattern of chromium in the complex ion Cr(NH₃)₆³⁺.

Give the systematic name for [CoCl₃(H₂O)]¯.