Question 1

How many unpaired electrons are there in [CoBr4]2-?

Accepted Answer

A) 0 
B) 2 
C) 3 
D) 4 
A) 0 
B) 2 
C) 3 
D) 4

Question 2

A complex that is the subject of a great deal of research because of its high oxidation potential is ferrate,FeO42-.How many unpaired electrons are in this complex?

Accepted Answer

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

Question 3

What is the d-electron configuration of the tetrahedral complex ion [FeCl4]-?

Accepted Answer

A) e2t3  
B) e4t1  
C) e5  
D) e1t4  
E) e3t2  
A) e2t3  
B) e4t1  
C) e5  
D) e1t4  
E) e3t2

Question 4

In the following reaction,what acts as the Lewis acid?
MgO(s)+ SO2(g)$\rightarrow$ MgSO3(s)

Accepted Answer

The answer of In the following reaction,what acts as the...

Question 5

Which of the following oxides is likely to be acidic?

Accepted Answer

A) Mn2O7  
B) MnO2  
C) Mn2O7 and MnO 
D) Mn2O3  
E) MnO 
A) Mn2O7  
B) MnO2  
C) Mn2O7 and MnO 
D) Mn2O3  
E) MnO

Question 6

How many unpaired electrons are predicted for [Mn(CN)6]4-?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 5 
E) 0 
A) 1 
B) 2 
C) 3 
D) 5 
E) 0

Question 7

Which of the following is diamagnetic?

Accepted Answer

A) [Fe(OH2)6]2+  
B) [Fe(CN)6]3- 
C) [Co(OH2)6]2+  
D) [Co(NH3)6]3+  
E) [Cr(NH3)6]3+  
A) [Fe(OH2)6]2+  
B) [Fe(CN)6]3- 
C) [Co(OH2)6]2+  
D) [Co(NH3)6]3+  
E) [Cr(NH3)6]3+

Question 8

Which of the following complexes is high-spin?

Accepted Answer

A) Cu(en)32+ 
B) Cr(OH2)63+ 
C) Ni(en)32+ 
D) Cr(OH2)62+ 
A) Cu(en)32+ 
B) Cr(OH2)63+ 
C) Ni(en)32+ 
D) Cr(OH2)62+

Question 9

The cationic complex [Co(OH2)6]2+ should have how many unpaired electrons?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 4 
A) 0 
B) 1 
C) 2 
D) 3 
E) 4

Question 10

Which of the following complexes is (are)chiral?

Accepted Answer

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

Question 11

Which of the following complexes is colorless?

Accepted Answer

A) Fe(OH2)62+ 
B) Cu(OH2)6+ 
C) Cu(OH2)62+ 
D) Ti(OH2)63+ 
A) Fe(OH2)62+ 
B) Cu(OH2)6+ 
C) Cu(OH2)62+ 
D) Ti(OH2)63+

Question 12

There are two geometric isomers of tris(glycinato)cobalt(III).Neither of these isomers is chiral.

Accepted Answer

A) True 
 B)False

Question 13

Zinc is used to galvanize iron.Explain why a galvanized container should not be used to store sodium hydroxide.

Accepted Answer

Zinc is amphoteric a

Question 14

How many oxidation states do most d-block elements have?

Accepted Answer

A) 0 
B) 1 
C) More than one 
D) It depends on the ligands to which it is bound. 
E) It depends on the number of unpaired d-electrons in the element. 
A) 0 
B) 1 
C) More than one 
D) It depends on the ligands to which it is bound. 
E) It depends on the number of unpaired d-electrons in the element.

Question 15

The complex [Ru(OH2)3Cl3]

Accepted Answer

A) is chiral. 
B) has 2 geometric isomers,neither of which is chiral. 
C) has 2 geometric isomers,one of which is chiral. 
D) has 2 geometric isomers,both of which are chiral. 
E) has no geometric isomers. 
A) is chiral. 
B) has 2 geometric isomers,neither of which is chiral. 
C) has 2 geometric isomers,one of which is chiral. 
D) has 2 geometric isomers,both of which are chiral. 
E) has no geometric isomers.

Question 16

Which of the following complex ions has the smallest d-orbital splitting energy?

Accepted Answer

A) [CoCl4]2- 
B) [CoCl6]4- 
C) [Co(NH3)6]2+  
D) [Co(OH2)6]2+  
E) [Co(CN)6]4- 
A) [CoCl4]2- 
B) [CoCl6]4- 
C) [Co(NH3)6]2+  
D) [Co(OH2)6]2+  
E) [Co(CN)6]4-

Question 17

The hexxaaquo complex,[Co(OH2)6]2+ ,should have how many unpaired electrons?

Accepted Answer

A) 4 
B) 3 
C) 2 
D) 1 
E) 0 
A) 4 
B) 3 
C) 2 
D) 1 
E) 0

Question 18

Consider the following data:

Which complex has the largest ligand field splitting?

Accepted Answer

Fe(CN)<sub

Question 19

How many geometric isomers are possible for tris(glycinato)cobalt(III)?

Accepted Answer

A) 5 
B) 2 
C) 0 
D) 3 
E) 4 
A) 5 
B) 2 
C) 0 
D) 3 
E) 4

Question 20

Which of the following complexes is chiral?

Accepted Answer

A) [Co(en)3]3+ 
B) [RuCl3(CN)3]3- 
C) [Co(NH3)6]3+ 
D) trans-[Cr(en)3]3+ 
A) [Co(en)3]3+ 
B) [RuCl3(CN)3]3- 
C) [Co(NH3)6]3+ 
D) trans-[Cr(en)3]3+

How many unpaired electrons are there in [CoBr₄]^2-?

A complex that is the subject of a great deal of research because of its high oxidation potential is ferrate,FeO₄^2-.How many unpaired electrons are in this complex?

What is the d-electron configuration of the tetrahedral complex ion [FeCl₄]^-?

In the following reaction,what acts as the Lewis acid? MgO(s)+ SO₂(g) $\rightarrow$ MgSO₃(s)

Which of the following oxides is likely to be acidic?

How many unpaired electrons are predicted for [Mn(CN)₆]^4-?

Which of the following is diamagnetic?

Which of the following complexes is high-spin?

The cationic complex [Co(OH₂)₆]²⁺ should have how many unpaired electrons?

Which of the following complexes is (are)chiral?

Which of the following complexes is colorless?

There are two geometric isomers of tris(glycinato)cobalt(III).Neither of these isomers is chiral.

Zinc is used to galvanize iron.Explain why a galvanized container should not be used to store sodium hydroxide.

How many oxidation states do most d-block elements have?

The complex [Ru(OH₂)₃Cl₃]

Which of the following complex ions has the smallest d-orbital splitting energy?

The hexxaaquo complex,[Co(OH₂)₆]²⁺ ,should have how many unpaired electrons?

Consider the following data: Which complex has the largest ligand field splitting?

How many geometric isomers are possible for tris(glycinato)cobalt(III)?

Which of the following complexes is chiral?

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

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Organic Chemistry I

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Exam 17: The Elements: The D Block

How many unpaired electrons are there in [CoBr4]2-?

A complex that is the subject of a great deal of research because of its high oxidation potential is ferrate,FeO42-.How many unpaired electrons are in this complex?

What is the d-electron configuration of the tetrahedral complex ion [FeCl4]-?

In the following reaction,what acts as the Lewis acid? MgO(s)+ SO2(g) →\rightarrow→ MgSO3(s)

Which of the following oxides is likely to be acidic?

How many unpaired electrons are predicted for [Mn(CN)6]4-?

Which of the following is diamagnetic?

Which of the following complexes is high-spin?

The cationic complex [Co(OH2)6]2+ should have how many unpaired electrons?

Which of the following complexes is (are)chiral?

Which of the following complexes is colorless?

There are two geometric isomers of tris(glycinato)cobalt(III).Neither of these isomers is chiral.

Zinc is used to galvanize iron.Explain why a galvanized container should not be used to store sodium hydroxide.

How many oxidation states do most d-block elements have?

The complex [Ru(OH2)3Cl3]

Which of the following complex ions has the smallest d-orbital splitting energy?

The hexxaaquo complex,[Co(OH2)6]2+ ,should have how many unpaired electrons?

Consider the following data: Which complex has the largest ligand field splitting?

How many geometric isomers are possible for tris(glycinato)cobalt(III)?

Which of the following complexes is chiral?

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters

How many unpaired electrons are there in [CoBr₄]^2-?

A complex that is the subject of a great deal of research because of its high oxidation potential is ferrate,FeO₄^2-.How many unpaired electrons are in this complex?

What is the d-electron configuration of the tetrahedral complex ion [FeCl₄]^-?

In the following reaction,what acts as the Lewis acid? MgO(s)+ SO₂(g) $\rightarrow$ MgSO₃(s)

How many unpaired electrons are predicted for [Mn(CN)₆]^4-?

The cationic complex [Co(OH₂)₆]²⁺ should have how many unpaired electrons?

The complex [Ru(OH₂)₃Cl₃]

The hexxaaquo complex,[Co(OH₂)₆]²⁺ ,should have how many unpaired electrons?