Question 1

Which of the following will be paramagnetic?

Accepted Answer

A)   V5+
B)   Ni2+
C)   Mn7+
D)   Ti4+
E)   ZnF) C) and D)
G) C) and E)

Question 2

What geometry is particularly common for complexes of d10 metal ions?

Accepted Answer

Question 3

A feature of transition metal chemistry is that these elements exhibit multiple oxidation states. Which one of the following elements exhibits the smallest number of different oxidation states?

Accepted Answer

A)   Ti
B)   Cr
C)   Mn
D)   Co
E)   ZnF) D) and E)
G) B) and C)

Question 4

The permanganate ion (MnO4¯) is a powerful reducing agent.

Accepted Answer

A) True 
 B)False

Question 5

A) Explain how the crystal field theory can use the magnitude of the splitting energy $\Delta$ to provide an explanation of the color and magnetic properties of octahedral complexes.
B) In promoting an electron from the t2g set of orbitals to the eg set, an octahedral complex absorbs a photon with a wavelength $\lambda$ of 523 nm. Calculate the value of $\Delta$ in the complex, in kJ/mol.

Accepted Answer

A) The energy needed for a photon to exc...

Question 6

Consider the following octahedral complex structures, each involving ethylene diamine and two different, unidentate ligands X and Y.  Which one of the following statements about these structures is incorrect?

Accepted Answer

A)   Structures 1 and 2 are optical isomers.
B)   Structures 1 and 3 are optical isomers.
C)   Structures 1 and 3 are different complexes.
D)   Structures 1 and 4 are geometrical isomers.
E)   Structures 3 and 4 are the same complex.F) All of the above
G) B) and D)

Question 7

All the actinide series of transition elements are radioactive.

Accepted Answer

A) True 
 B)False

Question 8

The ground state electron configuration of a transition element atom cannot have more than one incomplete subshell.

Accepted Answer

A) True 
 B)False

Question 9

What is the difference between a coordination compound and a complex ion?

Accepted Answer

A coordination compound genera...

Question 10

What is the coordination number of cobalt in the complex ion [Co(en) Cl4]¯? (en = ethylenediamine)

Accepted Answer

A)   1
B)   2
C)   4
D)   6
E)   8F) A) and B)
G) B) and D)

Question 11

The M2+ ions of the first transition series of elements all have the general electronic configuration [Ar]4s23dx, where x is an integer from 1 to 8.

Accepted Answer

A) True 
 B)False

Question 12

According to valence bond theory, what would be the set of hybrid orbitals used when a Period 4 transition metal forms a tetrahedral complex?

Accepted Answer

A)   d2sp
B)   dsp2
C)   dsp3
D)   sp3
E)   d2p2F) All of the above
G) A) and B)

Question 13

If M represents a transition element, which of the following oxides should be the least basic?

Accepted Answer

A)   MO
B)   M2O
C)   M2O3
D)   MO2
E)   MO3F) All of the above
G) None of the above

Question 14

Which of the following is not a property of silver that is important in black and white photography?

Accepted Answer

A)   Silver halides are not soluble in water.
B)   Silver metal is easily oxidized.
C)   Silver halides undergo a redox reaction when exposed to light.
D)   Silver ions will form stable, water-soluble complex ions.
E)   Silver atoms catalyze the reduction of silver ions.F) None of the above
G) D) and E)

Question 15

In the compound [Ni(en) 2(H2O) 2]SO4 (where en = ethylenediamine)  the oxidation number and coordination number of nickel are, respectively:

Accepted Answer

A)   2 and 6.
B)   4 and 6.
C)   6 and 6.
D)   2 and 4.
E)   4 and 4.F) A) and B)
G) B) and E)

Question 16

The crystal field splitting energy,  Δ\DeltaΔ ,

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. F) C) and D)
G) None of the above

Question 17

In a coordination compound involving a complex ion of square planar geometry, which of the following types of isomerism is/are never possible?

Accepted Answer

A)   geometric
B)   optical
C)   linkage
D)   coordination
E)   more than one of the choicesF) A) and D)
G) A) and B)

Question 18

Which of the following will be diamagnetic?

Accepted Answer

A)   Ni2+
B)   Cr2+
C)   Mn2+
D)   Co3+
E)   Ti4+F) A) and C)
G) All of the above

Question 19

According to valence bond theory, what would be the set of hybrid orbitals used when a Period 4 transition metal forms a square planar complex?

Accepted Answer

A)   d2sp
B)   d2p2
C)   dsp3
D)   sp3
E)   dsp2F) B) and C)
G) C) and D)

Question 20

Which one of the following normally acts as a bidentate ligand in complexes with transition metal ions?

Accepted Answer

A)   CN¯
B)   EDTA4¯
C)   SCN¯
D)   ethylene diamine
E)   ethylene, C2H4F) A) and E)
G) B) and E)

Exam 23: The Transition Elements and Their Coordination Compounds

Which of the following will be diamagnetic?

Correct Answer
verified

Which of the following will be paramagnetic?

Correct Answer
verified

The crystal field splitting energy, $\Delta$ ,

Correct Answer
verified

In a coordination compound involving a complex ion of square planar geometry, which of the following types of isomerism is/are never possible?

Correct Answer
verified

What geometry is particularly common for complexes of d¹⁰ metal ions?

Correct Answer
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The M²⁺ ions of the first transition series of elements all have the general electronic configuration [Ar]4s²3d^x, where x is an integer from 1 to 8.

Correct Answer
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If M represents a transition element, which of the following oxides should be the least basic?

Correct Answer
verified

A feature of transition metal chemistry is that these elements exhibit multiple oxidation states. Which one of the following elements exhibits the smallest number of different oxidation states?

Correct Answer
verified

Which of the following is not a property of silver that is important in black and white photography?

Correct Answer
verified

All the actinide series of transition elements are radioactive.

Correct Answer
verified

According to valence bond theory, what would be the set of hybrid orbitals used when a Period 4 transition metal forms a tetrahedral complex?

Correct Answer
verified

The permanganate ion (MnO₄¯) is a powerful reducing agent.

Correct Answer
verified

In the compound [Ni(en) ₂(H₂O) ₂]SO₄ (where en = ethylenediamine) the oxidation number and coordination number of nickel are, respectively:

Correct Answer
verified

Which one of the following normally acts as a bidentate ligand in complexes with transition metal ions?

Correct Answer
verified

What is the coordination number of cobalt in the complex ion [Co(en) Cl₄]¯? (en = ethylenediamine)

Correct Answer
verified

Consider the following octahedral complex structures, each involving ethylene diamine and two different, unidentate ligands X and Y. Which one of the following statements about these structures is incorrect?

Correct Answer
verified

According to valence bond theory, what would be the set of hybrid orbitals used when a Period 4 transition metal forms a square planar complex?

Correct Answer
verified

What is the difference between a coordination compound and a complex ion?

Correct Answer
verified
A coordination compound genera...
View Answer

Correct Answer
verified
A) The energy needed for a photon to exc...
View Answer

The ground state electron configuration of a transition element atom cannot have more than one incomplete subshell.

Correct Answer
verified

Exam 23: The Transition Elements and Their Coordination Compounds

Which of the following will be diamagnetic?

Correct AnswerverifiedShow Answer

Which of the following will be paramagnetic?

Correct AnswerverifiedShow Answer

The crystal field splitting energy, Δ\DeltaΔ ,

Correct AnswerverifiedShow Answer

In a coordination compound involving a complex ion of square planar geometry, which of the following types of isomerism is/are never possible?

Correct AnswerverifiedShow Answer

What geometry is particularly common for complexes of d10 metal ions?

Correct AnswerverifiedShow Answer

The M2+ ions of the first transition series of elements all have the general electronic configuration [Ar]4s23dx, where x is an integer from 1 to 8.

Correct AnswerverifiedShow Answer

If M represents a transition element, which of the following oxides should be the least basic?

Correct AnswerverifiedShow Answer

A feature of transition metal chemistry is that these elements exhibit multiple oxidation states. Which one of the following elements exhibits the smallest number of different oxidation states?

Correct AnswerverifiedShow Answer

Which of the following is not a property of silver that is important in black and white photography?

Correct AnswerverifiedShow Answer

All the actinide series of transition elements are radioactive.

Correct AnswerverifiedShow Answer

According to valence bond theory, what would be the set of hybrid orbitals used when a Period 4 transition metal forms a tetrahedral complex?

Correct AnswerverifiedShow Answer

The permanganate ion (MnO4¯) is a powerful reducing agent.

Correct AnswerverifiedShow Answer

In the compound [Ni(en) 2(H2O) 2]SO4 (where en = ethylenediamine) the oxidation number and coordination number of nickel are, respectively:

Correct AnswerverifiedShow Answer

Which one of the following normally acts as a bidentate ligand in complexes with transition metal ions?

Correct AnswerverifiedShow Answer

What is the coordination number of cobalt in the complex ion [Co(en) Cl4]¯? (en = ethylenediamine)

Correct AnswerverifiedShow Answer

Consider the following octahedral complex structures, each involving ethylene diamine and two different, unidentate ligands X and Y. Which one of the following statements about these structures is incorrect?

Correct AnswerverifiedShow Answer

According to valence bond theory, what would be the set of hybrid orbitals used when a Period 4 transition metal forms a square planar complex?

Correct AnswerverifiedShow Answer

What is the difference between a coordination compound and a complex ion?

Correct AnswerverifiedA coordination compound genera...View AnswerShow Answer

Correct AnswerverifiedA) The energy needed for a photon to exc...View AnswerShow Answer

The ground state electron configuration of a transition element atom cannot have more than one incomplete subshell.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

The crystal field splitting energy, $\Delta$ ,

Correct Answer
verified

Correct Answer
verified

What geometry is particularly common for complexes of d¹⁰ metal ions?

Correct Answer
verified

The M²⁺ ions of the first transition series of elements all have the general electronic configuration [Ar]4s²3d^x, where x is an integer from 1 to 8.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The permanganate ion (MnO₄¯) is a powerful reducing agent.

Correct Answer
verified

In the compound [Ni(en) ₂(H₂O) ₂]SO₄ (where en = ethylenediamine) the oxidation number and coordination number of nickel are, respectively:

Correct Answer
verified

Correct Answer
verified

What is the coordination number of cobalt in the complex ion [Co(en) Cl₄]¯? (en = ethylenediamine)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A coordination compound genera...
View Answer

Correct Answer
verified
A) The energy needed for a photon to exc...
View Answer

Correct Answer
verified