Question 1

What is the electron configuration of the Mn(II)ion?

Accepted Answer

A) [Ar] 4s23d5 
B) [Ar] 4s13d5 
C) [Ar] 4s23d3 
D) [Ar] 3d5 
E) none of these 
A) [Ar] 4s23d5 
B) [Ar] 4s13d5 
C) [Ar] 4s23d3 
D) [Ar] 3d5 
E) none of these

Question 2

Metals usually have higher melting points than nonmetals.

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

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

Question 4

Ethylenediamine (en)is a bidentate ligand.What is the coordination number of cobalt in [Co(en)2Cl2]Cl?

Accepted Answer

A) four 
B) five 
C) seven 
D) eight 
E) six 
A) four 
B) five 
C) seven 
D) eight 
E) six

Question 5

Consider the following complexes:
I.Pt(NH3)2Cl2
(square planar)
II.Rh(en)32+
(en = H2N-CH2-CH2-NH2 and is bidentate)
III.CoCl42-
(tetrahedral)
Which can exhibit cis-trans isomerism?

Accepted Answer

A) I 
B) II 
C) III 
D) I,II 
E) I,II,III 
A) I 
B) II 
C) III 
D) I,II 
E) I,II,III

Question 6

Which of the metal ions in the following complex ions has a d5 electron configuration?

Accepted Answer

A) V(H2O)62+ 
B) Mo(NH3)63+ 
C) Co(CN)4- 
D) Fe(CN)63- 
E) RhCl64- 
A) V(H2O)62+ 
B) Mo(NH3)63+ 
C) Co(CN)4- 
D) Fe(CN)63- 
E) RhCl64-

Question 7

Cytochromes consist of two main parts:

Accepted Answer

A) myoglobin and heme 
B) heme and porphyrin 
C) heme and a protein 
D) myoglobin and porphyrin 
E) an iron ion and porphyrin 
A) myoglobin and heme 
B) heme and porphyrin 
C) heme and a protein 
D) myoglobin and porphyrin 
E) an iron ion and porphyrin

Question 8

Choose the most likely pattern for the crystal field diagram for the complex trans-[Ni(NH3)2(CN)4]2- where CN- produces a much stronger crystal field than does NH3.

Accepted Answer

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

Question 9

How many unpaired electrons are present in the tetrahedral complex [CoCl4]-?

Accepted Answer

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

Question 10

What transition metal is mainly used for galvanizing steel?

Accepted Answer

A) iron 
B) zinc 
C) copper 
D) cobalt 
E) nickel 
A) iron 
B) zinc 
C) copper 
D) cobalt 
E) nickel

Question 11

This molecule is toxic because it has about 200 times the affinity for the Fe2+ in hemoglobin as oxygen does,causing asphyxiation if enough of it is present in the air.

Accepted Answer

A) CN- 
B) CO 
C) CO2 
D) NH3 
E) CH4 
A) CN- 
B) CO 
C) CO2 
D) NH3 
E) CH4

Question 12

What is the maximum oxidation state expected for manganese?

Accepted Answer

A) +2 
B) +8 
C) +6 
D) +5 
E) +7 
A) +2 
B) +8 
C) +6 
D) +5 
E) +7

Question 13

The electron configuration of Cr3+ is

Accepted Answer

A) [Ar] 4s23d1 
B) [Ar] 4s13d2 
C) [Ar] 3d3 
D) [Ar] 4s23d4 
E) none of these 
A) [Ar] 4s23d1 
B) [Ar] 4s13d2 
C) [Ar] 3d3 
D) [Ar] 4s23d4 
E) none of these

Question 14

What transition metal is used in magnets,catalysts,and drill bits?

Accepted Answer

A) nickel 
B) copper 
C) platinum 
D) cobalt 
E) titanium 
A) nickel 
B) copper 
C) platinum 
D) cobalt 
E) titanium

Question 15

The coordination theory was proposed by Alfred Packer.

Accepted Answer

A) True 
 B)False

Question 16

For which of the following metal ions would there be no low-spin versus high-spin distinction in octahedral complexes?

Accepted Answer

A) Cr2+ 
B) V2+ 
C) Fe3+ 
D) Mn2+ 
E) Co3+ 
A) Cr2+ 
B) V2+ 
C) Fe3+ 
D) Mn2+ 
E) Co3+

Question 17

What is the electron configuration of the Sc(I)ion?

Accepted Answer

A) [Ar] 4s14d1 
B) [Ar] 4s13d1 
C) [Ar] 3s13d1 
D) [Ar] 4s2 
E) [Ar] 3d2 
A) [Ar] 4s14d1 
B) [Ar] 4s13d1 
C) [Ar] 3s13d1 
D) [Ar] 4s2 
E) [Ar] 3d2

Question 18

Define optical isomerism.

Accepted Answer

Optical isomerism occurs when

Question 19

Hemoglobin is a complex of

Accepted Answer

A) Co3+ 
B) Mg2+ 
C) Fe2+ 
D) Sc3+ 
E) none of these 
A) Co3+ 
B) Mg2+ 
C) Fe2+ 
D) Sc3+ 
E) none of these

Question 20

Which of the following materials is added to the blast furnace to produce slag?

Accepted Answer

A) sulfur 
B) carbon 
C) silicon 
D) limestone 
E) none of these 
A) sulfur 
B) carbon 
C) silicon 
D) limestone 
E) none of these

Exam 21: Transition Metals and Coordination Chemistry

What is the electron configuration of the Mn(II)ion?

Metals usually have higher melting points than nonmetals.

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

Ethylenediamine (en)is a bidentate ligand.What is the coordination number of cobalt in [Co(en)2Cl2]Cl?

Consider the following complexes: I.Pt(NH3)2Cl2 (square planar) II.Rh(en)32+ (en = H2N-CH2-CH2-NH2 and is bidentate) III.CoCl42- (tetrahedral) Which can exhibit cis-trans isomerism?

Which of the metal ions in the following complex ions has a d5 electron configuration?

Cytochromes consist of two main parts:

Choose the most likely pattern for the crystal field diagram for the complex trans-[Ni(NH3)2(CN)4]2- where CN- produces a much stronger crystal field than does NH3.

How many unpaired electrons are present in the tetrahedral complex [CoCl4]-?

What transition metal is mainly used for galvanizing steel?

This molecule is toxic because it has about 200 times the affinity for the Fe2+ in hemoglobin as oxygen does,causing asphyxiation if enough of it is present in the air.

What is the maximum oxidation state expected for manganese?

The electron configuration of Cr3+ is

What transition metal is used in magnets,catalysts,and drill bits?

The coordination theory was proposed by Alfred Packer.

For which of the following metal ions would there be no low-spin versus high-spin distinction in octahedral complexes?

What is the electron configuration of the Sc(I)ion?

Define optical isomerism.

Hemoglobin is a complex of

Which of the following materials is added to the blast furnace to produce slag?

Chemical Foundations

Atoms, molecules, and Ions

Stoichiometry

Chemical Reactions and Solutions Stoichiometry

Gases

Thermochemistry

Atomic Structure and Periodicity

Bonding: General Concepts

Covalent Bonding: Orbitals

Liquids and Solids

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex Ion Equilibria

Spontaneity, entropy, and Free Energy

Electrochemistry

The Nucleus: a Chemists View

The Representative Elements

Organic and Biological Molecules

Filters

Ethylenediamine (en)is a bidentate ligand.What is the coordination number of cobalt in [Co(en)₂Cl₂]Cl?

Consider the following complexes: I.Pt(NH₃)₂Cl₂ (square planar) II.Rh(en)₃²⁺ (en = H₂N-CH₂-CH₂-NH₂ and is bidentate) III.CoCl₄²^- (tetrahedral) Which can exhibit cis-trans isomerism?

Which of the metal ions in the following complex ions has a d⁵ electron configuration?

Choose the most likely pattern for the crystal field diagram for the complex trans-[Ni(NH₃)₂(CN)₄]²^- where CN^- produces a much stronger crystal field than does NH₃.

How many unpaired electrons are present in the tetrahedral complex [CoCl₄]^-?

This molecule is toxic because it has about 200 times the affinity for the Fe²⁺ in hemoglobin as oxygen does,causing asphyxiation if enough of it is present in the air.

The electron configuration of Cr³⁺ is