Question 1

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 2

Square planar complexes can exhibit both geometric and optical isomerism.

Accepted Answer

A) True 
 B)False

Question 3

a. State the requirement for two molecules to be optical isomers.
b. A complex ion MABCD2+ (where A, B, C, and D are different unidentate ligands) rotates the plane of polarized light. Deduce the geometry of the complex and draw the optical isomers of this ionic formula.

Accepted Answer

a. The molecules must be non-s

Question 4

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 5

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 the above 
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 the above

Question 6

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 7

Write the formula for sodium tetracyanonickelate(II).

Accepted Answer

A)  Na[Ni(CN)4] 
B)  Na[Ni(CN)4]2 
C)  Na2[Ni(CN)4] 
D)  Na4[Ni(CN)4] 
E)  none of the above 
A)  Na[Ni(CN)4] 
B)  Na[Ni(CN)4]2 
C)  Na2[Ni(CN)4] 
D)  Na4[Ni(CN)4] 
E)  none of the above

Question 8

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 9

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 10

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 11

In a coordination compound involving a complex ion of square planar geometry, which of the following types of isomerism is/are never possible?

Accepted Answer

A)  geometric 
B)  optical 
C)  linkage 
D)  coordination 
E)  more than one of the above 
A)  geometric 
B)  optical 
C)  linkage 
D)  coordination 
E)  more than one of the above

Question 12

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)  NO2- 
D)  CO 
E)  I- 
A)  CN- 
B)  en (ethylenediamine) 
C)  NO2- 
D)  CO 
E)  I-

Question 13

Give the systematic name for [Cu(NH3)4]Cl2.

Accepted Answer

A)  dichlorotetraamminecuprate(II) 
B)  tetraamminecopper(II) chloride 
C)  copper(II) ammonium chloride 
D)  tetraaminocopper(II) chloride 
E)  none of the above 
A)  dichlorotetraamminecuprate(II) 
B)  tetraamminecopper(II) chloride 
C)  copper(II) ammonium chloride 
D)  tetraaminocopper(II) chloride 
E)  none of the above

Question 14

A characteristic of ligands is that

Accepted Answer

A)  they are Lewis acids. 
B)  they are Lewis bases. 
C)  they are ions. 
D)  they are electron pair acceptors. 
E)  they are Brønsted-Lowry acids. 
A)  they are Lewis acids. 
B)  they are Lewis bases. 
C)  they are ions. 
D)  they are electron pair acceptors. 
E)  they are Brønsted-Lowry acids.

Question 15

Tetrahedral complexes can exhibit both optical and linkage isomerism.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following will be paramagnetic?

Accepted Answer

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

Question 17

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 a covalent 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 18

Valence Bond theory rationalizes octahedral geometry by assuming a d2sp3 hybridization pattern.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following elements has the ground state electron configuration, [Xe]4f145d106s1?

Accepted Answer

A)  Hg 
B)  Ag 
C)  Hf 
D)  Au 
E)  Th 
A)  Hg 
B)  Ag 
C)  Hf 
D)  Au 
E)  Th

Question 20

What geometry is particularly common for complexes of d10 metal ions?

Accepted Answer

Exam 23: The Transition Elements and Their Coordination Compounds

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

Square planar complexes can exhibit both geometric and optical isomerism.

a. State the requirement for two molecules to be optical isomers. b. A complex ion MABCD2+ (where A, B, C, and D are different unidentate ligands) rotates the plane of polarized light. Deduce the geometry of the complex and draw the optical isomers of this ionic formula.

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

Write the formula for diamminedichloroethylenediaminecobalt(III) bromide.

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?

Write the formula for sodium tetracyanonickelate(II).

Give one important use of the following metals or their compounds. a. chromium b. manganese c. mercury d. silver

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

Which of the following is considered a bidentate ligand?

In a coordination compound involving a complex ion of square planar geometry, which of the following types of isomerism is/are never possible?

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

Give the systematic name for [Cu(NH3)4]Cl2.

A characteristic of ligands is that

Tetrahedral complexes can exhibit both optical and linkage isomerism.

Which of the following will be paramagnetic?

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 a covalent bond with chlorine?

Valence Bond theory rationalizes octahedral geometry by assuming a d2sp3 hybridization pattern.

Which of the following elements has the ground state electron configuration, [Xe]4f145d106s1?

What geometry is particularly common for complexes of d10 metal ions?

Keys to the Study of Chemistry

The Components of Matter

Stoichiometry of Formulas and Equations

The 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: Bonding, Structure, and Reactivity

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?

a. State the requirement for two molecules to be optical isomers. b. A complex ion MABCD²⁺ (where A, B, C, and D are different unidentate ligands) rotates the plane of polarized light. Deduce the geometry of the complex and draw the optical isomers of this ionic formula.

Give the systematic name for [Cu(NH₃)₄]Cl₂.

Valence Bond theory rationalizes octahedral geometry by assuming a d²sp³ hybridization pattern.

Which of the following elements has the ground state electron configuration, [Xe]4f¹⁴5d¹⁰6s¹?

What geometry is particularly common for complexes of d¹⁰ metal ions?