Question 1

How many 3d electrons does a ground-state Fe3+ ion have?

Accepted Answer

A)  3 
B)  5 
C)  6 
D)  7 
E)  9 
A)  3 
B)  5 
C)  6 
D)  7 
E)  9

Question 2

What is the label used for an isomer which is levorotatory?

Accepted Answer

The answer of What is the label used for an...

Question 3

Octahedral complexes can exhibit geometric and optical isomerism.

Accepted Answer

A) True 
 B)False

Question 4

How many geometric isomers can the following square-planar complex have?

Accepted Answer

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

Question 5

The crystal field splitting energy, Δ,

Accepted Answer

A)  is larger for tetrahedral complexes than for octahedral complexes. 
B)  depends on the metal but not on the ligand. 
C)  determines the color of a complex. 
D)  is larger for ionic ligands like chloride than for molecular ligands like carbon monoxide, CO. 
E)  determines the charge of a complex. 
A)  is larger for tetrahedral complexes than for octahedral complexes. 
B)  depends on the metal but not on the ligand. 
C)  determines the color of a complex. 
D)  is larger for ionic ligands like chloride than for molecular ligands like carbon monoxide, CO. 
E)  determines the charge of a complex.

Question 6

In K4[Fe(CN)6], how many 3d electrons does the iron atom have?

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  6 
E)  7 
A)  3 
B)  4 
C)  5 
D)  6 
E)  7

Question 7

If the plane of polarization is rotated to the right then the isomer is ________.

Accepted Answer

The answer of If the plane of polarization is rotated...

Question 8

What is the name of the atom in a ligand that is bound directly to the metal atom?

Accepted Answer

A)  Acceptor atom 
B)  Donor atom 
C)  Chelating atom 
D)  Coordinator 
E)  Chelating agent 
A)  Acceptor atom 
B)  Donor atom 
C)  Chelating atom 
D)  Coordinator 
E)  Chelating agent

Question 9

Which of the following ligands has two different types of donor atoms?

Accepted Answer

A)  NH3 
B)  H2O 
C)  NH4+ 
D)  NO2- 
E)  ethylenediamine 
A)  NH3 
B)  H2O 
C)  NH4+ 
D)  NO2- 
E)  ethylenediamine

Question 10

Which of the following will be paramagnetic?

Accepted Answer

A)  V5+ 
B)  Ni2+ 
C)  Mn7+ 
D)  Ti4+ 
E)  Zn2+ 
A)  V5+ 
B)  Ni2+ 
C)  Mn7+ 
D)  Ti4+ 
E)  Zn2+

Question 11

Iron(III) forms an octahedral complex with the ligand CN-. How many unpaired electrons are in the d orbitals of iron?

Accepted Answer

A)  1 
B)  3 
C)  5 
D)  7 
E)  9 
A)  1 
B)  3 
C)  5 
D)  7 
E)  9

Question 12

The following energy-level diagram could correspond to which coordination compound?

Accepted Answer

A)  hexabromomanganate(II) 
B)  hexacyanoferrate(II) 
C)  hexacyanoferrate(III) 
D)  hexabromomanganate(IV) 
E)  hexachlorochromate(II) 
A)  hexabromomanganate(II) 
B)  hexacyanoferrate(II) 
C)  hexacyanoferrate(III) 
D)  hexabromomanganate(IV) 
E)  hexachlorochromate(II)

Question 13

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)  (NH3)2Cl2(en)Co3Br 
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)  (NH3)2Cl2(en)Co3Br

Question 14

In the coordination compound [Pt(NH3)2Cl2], the coordination number and oxidation number of the central atom are ________ and ________, respectively.

Accepted Answer

A)  2; 0 
B)  4; +4 
C)  5; 0 
D)  4; +2 
E)  6; +2 
A)  2; 0 
B)  4; +4 
C)  5; 0 
D)  4; +2 
E)  6; +2

Question 15

Which of these diagrams represent the crystal field splitting between d orbitals in a tetrahedral complex?

Accepted Answer

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

Question 16

An equimolar mixture (50:50 ratio) of two enantiomers is called a(n) ________ ________.

Accepted Answer

The answer of An equimolar mixture (50:50 ratio) of two...

Question 17

The maximum oxidation state of an element in the first transition series never exceeds its group number.

Accepted Answer

A) True 
 B)False

Question 18

How many 3d electrons does a ground-state Sc3+ ion have?

Accepted Answer

A)  1 
B)  3 
C)  2 
D)  10 
E)  0 
A)  1 
B)  3 
C)  2 
D)  10 
E)  0

Question 19

The ion [Co(NH3)6]2+ is octahedral and high spin. This complex is

Accepted Answer

A)  paramagnetic, with 1 unpaired electron. 
B)  paramagnetic, with 3 unpaired electrons. 
C)  paramagnetic, with 4 unpaired electrons. 
D)  paramagnetic, with 5 unpaired electrons. 
E)  diamagnetic. 
A)  paramagnetic, with 1 unpaired electron. 
B)  paramagnetic, with 3 unpaired electrons. 
C)  paramagnetic, with 4 unpaired electrons. 
D)  paramagnetic, with 5 unpaired electrons. 
E)  diamagnetic.

Question 20

In the coordination compound [Co(en)2Cl2]Cl, the coordination number and oxidation number of the central atom are ________ and ________, respectively.

Accepted Answer

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

Exam 22: Coordination Chemistry

How many 3d electrons does a ground-state Fe3+ ion have?

What is the label used for an isomer which is levorotatory?

Octahedral complexes can exhibit geometric and optical isomerism.

How many geometric isomers can the following square-planar complex have?

The crystal field splitting energy, Δ,

In K4[Fe(CN)6], how many 3d electrons does the iron atom have?

If the plane of polarization is rotated to the right then the isomer is ________.

What is the name of the atom in a ligand that is bound directly to the metal atom?

Which of the following ligands has two different types of donor atoms?

Which of the following will be paramagnetic?

Iron(III) forms an octahedral complex with the ligand CN-. How many unpaired electrons are in the d orbitals of iron?

The following energy-level diagram could correspond to which coordination compound?

Write the formula for diamminedichloroethylenediaminecobalt(III) bromide.

In the coordination compound [Pt(NH3)2Cl2], the coordination number and oxidation number of the central atom are ________ and ________, respectively.

Which of these diagrams represent the crystal field splitting between d orbitals in a tetrahedral complex?

An equimolar mixture (50:50 ratio) of two enantiomers is called a(n) ________ ________.

The maximum oxidation state of an element in the first transition series never exceeds its group number.

How many 3d electrons does a ground-state Sc3+ ion have?

The ion [Co(NH3)6]2+ is octahedral and high spin. This complex is

In the coordination compound [Co(en)2Cl2]Cl, the coordination number and oxidation number of the central atom are ________ and ________, respectively.

Chemistry: the Central Science

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Stoichiometry: Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

How many 3d electrons does a ground-state Fe³⁺ ion have?

In K₄[Fe(CN)₆], how many 3d electrons does the iron atom have?

Iron(III) forms an octahedral complex with the ligand CN^-. How many unpaired electrons are in the d orbitals of iron?

In the coordination compound [Pt(NH₃)₂Cl₂], the coordination number and oxidation number of the central atom are and , respectively.

An equimolar mixture (50:50 ratio) of two enantiomers is called a(n) .

How many 3d electrons does a ground-state Sc³⁺ ion have?

The ion [Co(NH₃)₆]²⁺ is octahedral and high spin. This complex is

In the coordination compound [Co(en)₂Cl₂]Cl, the coordination number and oxidation number of the central atom are and , respectively.