Question 1

Rhodium lies below cobalt in the periodic table .What is the d-electron configuration of [Rh(CN)6]3-?

Accepted Answer

A)  t2g5eg2  
B)  t2g4eg1  
C)  t2g6  
D)  t2g4eg2  
E)  t2g5  
A)  t2g5eg2  
B)  t2g4eg1  
C)  t2g6  
D)  t2g4eg2  
E)  t2g5

Question 2

Which of the following is likely to be a good oxidizing agent?

Accepted Answer

A)  Fe2+  
B)  Cr2+  
C)  V2+  
D)  Mn2+  
E)  MnO4-  
A)  Fe2+  
B)  Cr2+  
C)  V2+  
D)  Mn2+  
E)  MnO4-

Question 3

How many unpaired electrons can be predicted for an iron(II) complex when the complex is tetrahedral?

Accepted Answer

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

Question 4

Which of the following pairs have about the same atomic radius?

Accepted Answer

A)  Cu and Ag 
B)  Co and Rh 
C)  Fe and Ru 
D)  Mn and Tc 
E)  Ru and Os 
A)  Cu and Ag 
B)  Co and Rh 
C)  Fe and Ru 
D)  Mn and Tc 
E)  Ru and Os

Question 5

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 6

How many unpaired electrons are predicted for a tetrahedral iron (II) complex?

Accepted Answer

A)  5 or 1, depending on the ligands. 
B)  0 or 4, depending on the ligands. 
C)  1 
D)  4 
E)  5 
A)  5 or 1, depending on the ligands. 
B)  0 or 4, depending on the ligands. 
C)  1 
D)  4 
E)  5

Question 7

How many unpaired electrons are expected for Co(OH2)62+?

Accepted Answer

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

Question 8

One mole of cis-tetraamminedichlororhodium(III) chloride dissolves in water to give

Accepted Answer

A)  3 moles of ions. 
B)  2 moles of ions. 
C)  1 mole of ions. 
D)  6 moles of ions. 
A)  3 moles of ions. 
B)  2 moles of ions. 
C)  1 mole of ions. 
D)  6 moles of ions.

Question 9

Comparing [Co(CN)6]3- with [CoCl6]4-, which of the following statements is true?

Accepted Answer

A)  [Co(CN)6]3-has more d-electrons than [CoCl6]4-. 
B)  [Co(CN)6]3- is paramagnetic while [CoCl6]4- is diamagnetic. 
C)  Both complexes are paramagnetic. 
D)  [Co(CN)6]3- is diamagnetic while [CoCl6]4- is paramagnetic. 
E)  [Co(CN)6]3- has the same number of d-electrons as [CoCl6]4-. 
A)  [Co(CN)6]3-has more d-electrons than [CoCl6]4-. 
B)  [Co(CN)6]3- is paramagnetic while [CoCl6]4- is diamagnetic. 
C)  Both complexes are paramagnetic. 
D)  [Co(CN)6]3- is diamagnetic while [CoCl6]4- is paramagnetic. 
E)  [Co(CN)6]3- has the same number of d-electrons as [CoCl6]4-.

Question 10

The lanthanide contraction results because

Accepted Answer

A)  the shielding effect of the d-electrons is less than that of the f-electrons. 
B)  the shielding effect of the d-electrons is greater than that of the f-electrons. 
C)  of the poor shielding effect of the f-electrons and the higher nuclear charge. 
D)  the d-electrons shield the f-electrons from the nucleus. 
E)  f-electrons interact more strongly with each other than d-electrons. 
A)  the shielding effect of the d-electrons is less than that of the f-electrons. 
B)  the shielding effect of the d-electrons is greater than that of the f-electrons. 
C)  of the poor shielding effect of the f-electrons and the higher nuclear charge. 
D)  the d-electrons shield the f-electrons from the nucleus. 
E)  f-electrons interact more strongly with each other than d-electrons.

Question 11

In the complex [Fe(CN)6]4-,

Accepted Answer

A)  iron is a Lewis acid and cyanide is a Lewis base. 
B)  Cyanide is a Lewis acid. 
C)  iron has an oxidation number of +3. 
D)  Cyanide has an oxidation number of -2. 
A)  iron is a Lewis acid and cyanide is a Lewis base. 
B)  Cyanide is a Lewis acid. 
C)  iron has an oxidation number of +3. 
D)  Cyanide has an oxidation number of -2.

Question 12

The ligand field splitting energy is greater for complexes of $ \pi $-acid ligands than for complexes of $ \pi $-base ligands.

Accepted Answer

A) True 
 B)False

Question 13

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 14

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 15

For the oxides CrO, Cr2O3, And CrO3,
Which of the following is true?

Accepted Answer

A)  All the oxides are basic. 
B)  All the oxides are acidic. 
C)  CrO is acidic, and Cr2O3 and CrO3 are basic. 
D)  CrO and Cr2O3 are acidic and CrO3 is basic. 
E)  CrO is basic, Cr2O3 is amphoteric, and CrO3 is acidic. 
A)  All the oxides are basic. 
B)  All the oxides are acidic. 
C)  CrO is acidic, and Cr2O3 and CrO3 are basic. 
D)  CrO and Cr2O3 are acidic and CrO3 is basic. 
E)  CrO is basic, Cr2O3 is amphoteric, and CrO3 is acidic.

Rhodium lies below cobalt in the periodic table .What is the d-electron configuration of [Rh(CN)₆]³^-?

Which of the following is likely to be a good oxidizing agent?

How many unpaired electrons can be predicted for an iron(II) complex when the complex is tetrahedral?

Which of the following pairs have about the same atomic radius?

The complex [Ru(OH₂)₃Cl₃]

How many unpaired electrons are predicted for a tetrahedral iron (II) complex?

How many unpaired electrons are expected for Co(OH₂)₆²⁺?

One mole of cis-tetraamminedichlororhodium(III) chloride dissolves in water to give

Comparing [Co(CN)₆]³^- with [CoCl₆]⁴^-, which of the following statements is true?

The lanthanide contraction results because

In the complex [Fe(CN)₆]⁴^-,

The ligand field splitting energy is greater for complexes of $\pi$ -acid ligands than for complexes of $\pi$ -base ligands.

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

Which of the following oxides is likely to be acidic?

For the oxides CrO, Cr₂O₃, And CrO₃, Which of the following is true?

Atoms

Molecules

States of Matter

Thermodynamics

Equilibrium

Reactions

Kinetics

The Main-Group Elements

Nuclear Chemistry

Organic Chemistry

Filters

Exam 9: The D-Block Elements

Rhodium lies below cobalt in the periodic table .What is the d-electron configuration of [Rh(CN)6]3-?

Which of the following is likely to be a good oxidizing agent?

How many unpaired electrons can be predicted for an iron(II) complex when the complex is tetrahedral?

Which of the following pairs have about the same atomic radius?

The complex [Ru(OH2)3Cl3]

How many unpaired electrons are predicted for a tetrahedral iron (II) complex?

How many unpaired electrons are expected for Co(OH2)62+?

One mole of cis-tetraamminedichlororhodium(III) chloride dissolves in water to give

Comparing [Co(CN)6]3- with [CoCl6]4-, which of the following statements is true?

The lanthanide contraction results because

In the complex [Fe(CN)6]4-,

The ligand field splitting energy is greater for complexes of π \pi π -acid ligands than for complexes of π \pi π -base ligands.

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

Which of the following oxides is likely to be acidic?

For the oxides CrO, Cr2O3, And CrO3, Which of the following is true?

Atoms

Molecules

States of Matter

Thermodynamics

Equilibrium

Reactions

Kinetics

The Main-Group Elements

Nuclear Chemistry

Organic Chemistry

Filters

Rhodium lies below cobalt in the periodic table .What is the d-electron configuration of [Rh(CN)₆]³^-?

The complex [Ru(OH₂)₃Cl₃]

How many unpaired electrons are expected for Co(OH₂)₆²⁺?

Comparing [Co(CN)₆]³^- with [CoCl₆]⁴^-, which of the following statements is true?

In the complex [Fe(CN)₆]⁴^-,

The ligand field splitting energy is greater for complexes of $\pi$ -acid ligands than for complexes of $\pi$ -base ligands.

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

For the oxides CrO, Cr₂O₃, And CrO₃, Which of the following is true?