Question 1

What is the name of the compound having the formula [Ru(CO)6](ClO4)3?

Accepted Answer

A)  hexacarbonmonoxideruthenium(III) perchlorate 
B)  hexacarbonmonoxideruthenium(II) chloro tetroxide 
C)  trichloratehexacarbonylruthenate(III) 
D)  hexacarbonylruthenium(II) chlorate 
E)  hexacarbonylruthenium(III) perchlorate 
A)  hexacarbonmonoxideruthenium(III) perchlorate 
B)  hexacarbonmonoxideruthenium(II) chloro tetroxide 
C)  trichloratehexacarbonylruthenate(III) 
D)  hexacarbonylruthenium(II) chlorate 
E)  hexacarbonylruthenium(III) perchlorate

Question 2

Which of the following is the oxidation number of molybdenum in the complex [Mo(H2O)5OH]Cl2?

Accepted Answer

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

Question 3

What is the coordination number of the chromium in [Cr(phen)3]3+? The phen ligand is pictured below. Not all ligand lone pairs of electrons are explicitly shown.

Accepted Answer

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

Question 4

One method of recovering metals from their ores involves aqueous solutions; a second method involves heat. The method involving heat is called ________.

Accepted Answer

The answer of One method of recovering metals from their...

Question 5

Determine the number of unpaired electrons in a Cu+2 tetrahedral complex.

Accepted Answer

A)  Zero 
B)  One 
C)  Two 
D)  Three 
E)  Four 
A)  Zero 
B)  One 
C)  Two 
D)  Three 
E)  Four

Question 6

Which of the following elements has the ground state electron configuration [Xe]4f145d66s2.

Accepted Answer

A)  Iridium 
B)  Tantalum 
C)  Osmium 
D)  Ruthenium 
E)  Gold 
A)  Iridium 
B)  Tantalum 
C)  Osmium 
D)  Ruthenium 
E)  Gold

Question 7

What is the correct formula for sodium tetrachlorocuprate(II)?

Accepted Answer

A)  Na3[CuCl4] 
B)  Na2[CuCl4] 
C)  Na[CuCl4] 
D)  Na4[CuCl4] 
E)  Na2[CuCl6] 
A)  Na3[CuCl4] 
B)  Na2[CuCl4] 
C)  Na[CuCl4] 
D)  Na4[CuCl4] 
E)  Na2[CuCl6]

Question 8

What is the total number of electrons in p orbitals in a ground-state cobalt atom?

Accepted Answer

A)  6 
B)  18 
C)  12 
D)  24 
E)  30 
A)  6 
B)  18 
C)  12 
D)  24 
E)  30

Question 9

Below is a list of formulas for complex compounds; each is matched with its name. One formula / name combination contains an error. Which one? Formula / Name

Accepted Answer

A)  [Co(en)2Br2]Br / dibromobis(ethylenediamine)cobalt(III) bromide 
B)  [Fe(NH3)5(OH2)]Cl3 / pentaammineaquairon(III) chloride 
C)  K3[Co(NO2)6] / potassium hexanitrocobaltate(III) 
D)  [Cr(NH3)3(OH)3] / triamminetrihydroxochromate(III) 
E)  [Ni(en)3](NO3)2 / tris(ethylenediamine)nickel(II) nitrate 
A)  [Co(en)2Br2]Br / dibromobis(ethylenediamine)cobalt(III) bromide 
B)  [Fe(NH3)5(OH2)]Cl3 / pentaammineaquairon(III) chloride 
C)  K3[Co(NO2)6] / potassium hexanitrocobaltate(III) 
D)  [Cr(NH3)3(OH)3] / triamminetrihydroxochromate(III) 
E)  [Ni(en)3](NO3)2 / tris(ethylenediamine)nickel(II) nitrate

Question 10

The complex ion [NiCl4]2- is paramagnetic, but the complex ion [Ni(NH3)4]2+ is diamagnetic. Why do the magnetic properties of these two nickel complexes differ?

Accepted Answer

[NiCl₄]^2- must have a tetrahedral geometry.

Question 11

What is the formula for dicyanobis(ethylenediamine)zirconium(IV) nitrate? (en = ethylenediamine)

Accepted Answer

A)  Zr[(CN)2(NO3)2(en)2] 
B)  [Zr(CN)2(NO3)2(en)2] 
C)  (NO3)2[Zr(CN)2(en)2] 
D)  [Zr(CN)2(en)2](NO3)2 
E)  [Zr(NO3)2(en)2](CN)2 
A)  Zr[(CN)2(NO3)2(en)2] 
B)  [Zr(CN)2(NO3)2(en)2] 
C)  (NO3)2[Zr(CN)2(en)2] 
D)  [Zr(CN)2(en)2](NO3)2 
E)  [Zr(NO3)2(en)2](CN)2

Question 12

What is the name of the compound having the formula [Cr(en)2(H2O)2]SO4?

Accepted Answer

A)  dihydroxydiethlyenediamminechromate(II) sulfate 
B)  diaquabis(ethylenediamine)sulfatochromate(IV) 
C)  bis(ethylenediamine)diaquachromium(II) sulfato 
D)  diaquabis(ethylenediamine)sulfatochromium(II) 
E)  diaquabis(ethylenediamine)chromium(II) sulfate 
A)  dihydroxydiethlyenediamminechromate(II) sulfate 
B)  diaquabis(ethylenediamine)sulfatochromate(IV) 
C)  bis(ethylenediamine)diaquachromium(II) sulfato 
D)  diaquabis(ethylenediamine)sulfatochromium(II) 
E)  diaquabis(ethylenediamine)chromium(II) sulfate

Question 13

Which element has the highest density?

Accepted Answer

A)  Zn 
B)  Y 
C)  Os 
D)  Fe 
E)  Ag 
A)  Zn 
B)  Y 
C)  Os 
D)  Fe 
E)  Ag

Question 14

Iron, _____, and sulfur form the reactive portion of nitrogenase, a biological catalyst used by nitrogen-fixing organisms.

Accepted Answer

A)  calcium 
B)  cobalt 
C)  zinc 
D)  cadmium 
E)  molybdenum 
A)  calcium 
B)  cobalt 
C)  zinc 
D)  cadmium 
E)  molybdenum

Question 15

Which of the following is the valence shell orbital box notation for the ground state electron configuration of Mn? 
     $3 \mathrm {~d}$$\quad\quad\quad\quad\quad4 \mathrm {~s}$

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 16

Which of the following species have geometric isomers: [Fe(en)Cl4]-, [Fe(en)2Cl2]+, and [Fe(en)2BrCl]+?

Accepted Answer

A)  [Fe(en)Cl4]- only 
B)  [Fe(en)2Cl2]+ only 
C)  [Fe(en)2BrCl]+ only 
D)  [Fe(en)2Cl2]+ and [Fe(en)2BrCl]+ 
E)  [Fe(en)Cl4]-, [Fe(en)2Cl2]+, and [Fe(en)2BrCl]+ 
A)  [Fe(en)Cl4]- only 
B)  [Fe(en)2Cl2]+ only 
C)  [Fe(en)2BrCl]+ only 
D)  [Fe(en)2Cl2]+ and [Fe(en)2BrCl]+ 
E)  [Fe(en)Cl4]-, [Fe(en)2Cl2]+, and [Fe(en)2BrCl]+

Question 17

In which of the following complexes does the transition metal have a d8 configuration?

Accepted Answer

A)  Cu(H2O)62+ 
B)  Fe(CN)63- 
C)  Ni(CO)4 
D)  PtCl42- 
E)  Zn(NH3)42+ 
A)  Cu(H2O)62+ 
B)  Fe(CN)63- 
C)  Ni(CO)4 
D)  PtCl42- 
E)  Zn(NH3)42+

Question 18

Which of the following is the name of the complex [Cu(NH3)4]SO4?

Accepted Answer

A)  Tetraaminecopper(II) sulfate 
B)  Tetraaminecopper(III) sulfate 
C)  Tetrasulfatecopper(II) amine 
D)  Tetrasulfatecopper(III) amine 
E)  Tetraaminemonosulfatecopper(II) 
A)  Tetraaminecopper(II) sulfate 
B)  Tetraaminecopper(III) sulfate 
C)  Tetrasulfatecopper(II) amine 
D)  Tetrasulfatecopper(III) amine 
E)  Tetraaminemonosulfatecopper(II)

Question 19

Which of the following is the number of unpaired electrons in an octahedral high-spin Co+3 complex

Accepted Answer

A)  One 
B)  Two 
C)  Three 
D)  Four 
E)  Five 
A)  One 
B)  Two 
C)  Three 
D)  Four 
E)  Five

Question 20

The product of the oxidation of iron in most soil in the absence of excess oxygen is black magnetite. The chemical formula of this compound is ____.

Accepted Answer

A)  FeO 
B)  FeO2 
C)  Fe2O3 
D)  Fe3O2 
E)  Fe3O4 
A)  FeO 
B)  FeO2 
C)  Fe2O3 
D)  Fe3O2 
E)  Fe3O4

Exam 23: The Chemistry of the Transition Elements

What is the name of the compound having the formula [Ru(CO)6](ClO4)3?

Which of the following is the oxidation number of molybdenum in the complex [Mo(H2O)5OH]Cl2?

What is the coordination number of the chromium in [Cr(phen)3]3+? The phen ligand is pictured below. Not all ligand lone pairs of electrons are explicitly shown.

One method of recovering metals from their ores involves aqueous solutions; a second method involves heat. The method involving heat is called ________.

Determine the number of unpaired electrons in a Cu+2 tetrahedral complex.

Which of the following elements has the ground state electron configuration [Xe]4f145d66s2.

What is the correct formula for sodium tetrachlorocuprate(II)?

What is the total number of electrons in p orbitals in a ground-state cobalt atom?

Below is a list of formulas for complex compounds; each is matched with its name. One formula / name combination contains an error. Which one? Formula / Name

The complex ion [NiCl4]2- is paramagnetic, but the complex ion [Ni(NH3)4]2+ is diamagnetic. Why do the magnetic properties of these two nickel complexes differ?

What is the formula for dicyanobis(ethylenediamine)zirconium(IV) nitrate? (en = ethylenediamine)

What is the name of the compound having the formula [Cr(en)2(H2O)2]SO4?

Which element has the highest density?

Iron, _____, and sulfur form the reactive portion of nitrogenase, a biological catalyst used by nitrogen-fixing organisms.

Which of the following is the valence shell orbital box notation for the ground state electron configuration of Mn? 3 d3 \mathrm {~d}3 d4 s\quad\quad\quad\quad\quad4 \mathrm {~s}4 s

Which of the following species have geometric isomers: [Fe(en)Cl4]-, [Fe(en)2Cl2]+, and [Fe(en)2BrCl]+?

In which of the following complexes does the transition metal have a d8 configuration?

Which of the following is the name of the complex [Cu(NH3)4]SO4?

Which of the following is the number of unpaired electrons in an octahedral high-spin Co+3 complex

The product of the oxidation of iron in most soil in the absence of excess oxygen is black magnetite. The chemical formula of this compound is ____.

Basic Concepts of Chemistry

Lets Review: the Tools of Quantitative Chemistry

Atoms, Molecules, and Ions

Chemical Reactions

Stoichiometry: Quantitative Information About Chemical Reactions

Principles of Chemical Reactivity: Energy and Chemical Reactions

The Structure of Atoms

The Structure of Atoms and Periodic Trends

Bonding and Molecular Structure

Bonding and Molecular Structure Orbital Hybridization and Molecular Orbitals

Gases and Their Properties

Intermolecular Forces and Liquids

The Solid State

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Chemical Reactivity: Equilibria

Principles of Chemical Reactivity: the Chemistry of Acids and Bases

Principles of Chemical Reactivity: Other Aspects of Aqueous Equilibria

Principles of Chemical Reactivity: Entropy and Free Energy

Principles of Chemical Reactivity: Electron Transfer Reactions

Environmental Chemistry: Earths Environment, Energy, and Sustainability

The Chemistry of the Main Group Elements

Carbon: Not Just Another Element

Biochemistry

Nuclear Chemistry

Filters

What is the name of the compound having the formula [Ru(CO)₆](ClO₄)₃?

Which of the following is the oxidation number of molybdenum in the complex [Mo(H₂O)₅OH]Cl₂?

What is the coordination number of the chromium in [Cr(phen)₃]³⁺? The phen ligand is pictured below. Not all ligand lone pairs of electrons are explicitly shown.

Which of the following elements has the ground state electron configuration [Xe]4f¹⁴5d⁶6s².

The complex ion [NiCl₄]^2- is paramagnetic, but the complex ion [Ni(NH₃)₄]²⁺ is diamagnetic. Why do the magnetic properties of these two nickel complexes differ?

What is the name of the compound having the formula [Cr(en)₂(H₂O)₂]SO₄?

Which of the following is the valence shell orbital box notation for the ground state electron configuration of Mn? $3 \mathrm {~d}$ $\quad\quad\quad\quad\quad4 \mathrm {~s}$

Which of the following species have geometric isomers: [Fe(en)Cl₄]^-, [Fe(en)₂Cl₂]⁺, and [Fe(en)₂BrCl]⁺?

In which of the following complexes does the transition metal have a d⁸ configuration?