Question 1

The secondary valence in metal ion complexes is called the ________.

Accepted Answer

The answer of The secondary valence in metal ion complexes...

Question 2

Two compounds have the same formula and contain an SCN- ligand. In one compound the SCN- ligand is bonded to the metal atom via the N atom and in the other it is bonded via the S atom. These two compounds are examples of ________ isomers.

Accepted Answer

Question 3

The heme unit of myoglobin is bound to the protein via a nitrogen-containing ligand.

Accepted Answer

A) True 
 B)False

Question 4

The ligand with the name aqua when used in complexes with transition metals has the formula ________.

Accepted Answer

A)  H2O
B)  H2O2
C)  HO-
D)  N3-
E)  H3O+F) B) and E)
G) A) and C)

Question 5

Which one of the following substances has three unpaired d electrons?

Accepted Answer

A)  [Zn(NH3) 4]2+
B)  [V(H2O) 6]4+
C)  [Ag(NH3) 2]+
D)  [Cu(NH3) 4]2+
E)  [Cr(CN) 6]3-F) B) and E)
G) C) and E)

Question 6

Which one of the following species is a potential polydentate ligand (chelating agent) ?

Accepted Answer

A)  NH3
B)  Cl-
C)  CN-
D)  H2O
E)  C2O42-F) A) and E)
G) A) and B)

Question 7

How many isomers exist for the octahedral complex ion [Co(NH3) 4F2]+?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) A) and C)
G) B) and D) B

Question 8

What is the oxidation number of cobalt in [Co(NH3) 4F2]?

Accepted Answer

A)  -3
B)  +2
C)  +1
D)  +3
E)  +6F) B) and E)
G) C) and D)

Question 9

In what two ways can an object appear blue?

Accepted Answer

absorb all wavelengths except ...

Question 10

A ligand with a single donor atom is called ________.

Accepted Answer

A)  monodentate
B)  bidentate
C)  polydentate
D)  a chelate
E)  a chelonF) C) and D)
G) B) and C) A

Question 11

Which ion shown has empty 5s orbitals?

Accepted Answer

A)  Mo2+
B)  Y3+
C)  Zr4+
D)  Nb2+
E)  All choices have empty 5s orbitals.F) D) and E)
G) A) and B)

Question 12

Isomers whose ligands can bind directly to a metal or be outside the lattice are called ________.

Accepted Answer

A)  linkage isomers
B)  rotational isomers
C)  coordination sphere isomers
D)  geometric isomers
E)  optical isomersF) B) and C)
G) B) and E)

Question 13

In the following reaction, Ni2+ is acting as a(n) ________. Ni2+ (g)  + 6H2O (l)  → Ni(H2O) 62+ (aq)

Accepted Answer

A)  oxidizing agent
B)  Lewis acid
C)  precipitating agent
D)  solvent
E)  ligandF) A) and D)
G) B) and E) B

Question 14

Werner's theory of primary and secondary valences for transition metal complexes has given us the concepts of ________ and ________.

Accepted Answer

oxidation ...

Question 15

Which one of the following species is paramagnetic?

Accepted Answer

A)  Cu+
B)  Cr3+
C)  Zn
D)  Ca
E)  Ag+F) B) and D)
G) A) and B)

Question 16

How many bonds can ethylenediamine form to a metal ion?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  6F) A) and D)
G) D) and E)

Question 17

During the formation of a coordination compound, the metal acts as a ________.

Accepted Answer

A)  Lewis acid
B)  Br∅nsted acid
C)  Arrhenius acid
D)  Br∅nsted base
E)  Lewis baseF) A) and E)
G) C) and D)

Question 18

Which one of the following species is paramagnetic?

Accepted Answer

A)  Cu
B)  Ne
C)  Y3+
D)  Ra
E)  Zn2+F) A) and B)
G) B) and D)

Question 19

Which one of the following is not true about transition metals?

Accepted Answer

A)  They frequently have more than one common oxidation state.
B)  Their compounds are frequently colored.
C)  Their compounds frequently exhibit magnetic properties.
D)  They are found in the d-block of the periodic table.
E)  They typically have low melting points.F) All of the above
G) B) and C)

Question 20

The coordination number of cobalt in CoCl3 ∙ 6NH3 is ________.

Accepted Answer

A)  2
B)  3
C)  4
D)  6
E)  8F) B) and C)
G) A) and C)

Exam 23: Transition Metals and Coordination Chemistry

The secondary valence in metal ion complexes is called the ________.

Correct AnswerverifiedShow Answer

Two compounds have the same formula and contain an SCN- ligand. In one compound the SCN- ligand is bonded to the metal atom via the N atom and in the other it is bonded via the S atom. These two compounds are examples of ________ isomers.

Correct AnswerverifiedShow Answer

The heme unit of myoglobin is bound to the protein via a nitrogen-containing ligand.

Correct AnswerverifiedShow Answer

The ligand with the name aqua when used in complexes with transition metals has the formula ________.

Correct AnswerverifiedShow Answer

Which one of the following substances has three unpaired d electrons?

Correct AnswerverifiedShow Answer

Which one of the following species is a potential polydentate ligand (chelating agent) ?

Correct AnswerverifiedShow Answer

How many isomers exist for the octahedral complex ion [Co(NH3) 4F2]+?

Correct AnswerverifiedB

What is the oxidation number of cobalt in [Co(NH3) 4F2]?

Correct AnswerverifiedShow Answer

In what two ways can an object appear blue?

Correct Answerverifiedabsorb all wavelengths except ...View AnswerShow Answer

A ligand with a single donor atom is called ________.

Correct AnswerverifiedA

Which ion shown has empty 5s orbitals?

Correct AnswerverifiedShow Answer

Isomers whose ligands can bind directly to a metal or be outside the lattice are called ________.

Correct AnswerverifiedShow Answer

In the following reaction, Ni2+ is acting as a(n) ________. Ni2+ (g) + 6H2O (l) → Ni(H2O) 62+ (aq)

Correct AnswerverifiedB

Werner's theory of primary and secondary valences for transition metal complexes has given us the concepts of ________ and ________.

Correct Answerverifiedoxidation ...View AnswerShow Answer

Which one of the following species is paramagnetic?

Correct AnswerverifiedShow Answer

How many bonds can ethylenediamine form to a metal ion?

Correct AnswerverifiedShow Answer

During the formation of a coordination compound, the metal acts as a ________.

Correct AnswerverifiedShow Answer

Which one of the following species is paramagnetic?

Correct AnswerverifiedShow Answer

Which one of the following is not true about transition metals?

Correct AnswerverifiedShow Answer

The coordination number of cobalt in CoCl3 ∙ 6NH3 is ________.

Correct AnswerverifiedShow Answer

Correct Answer
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Two compounds have the same formula and contain an SCN^- ligand. In one compound the SCN^- ligand is bonded to the metal atom via the N atom and in the other it is bonded via the S atom. These two compounds are examples of ________ isomers.

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How many isomers exist for the octahedral complex ion [Co(NH₃) ₄F₂]⁺?

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B

What is the oxidation number of cobalt in [Co(NH₃) ₄F₂]?

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absorb all wavelengths except ...
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A

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In the following reaction, Ni²⁺ is acting as a(n) ________. Ni²⁺ (g) + 6H₂O (l) → Ni(H₂O) ₆²⁺ (aq)

Correct Answer
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B

Werner's theory of primary and secondary valences for transition metal complexes has given us the concepts of and .

Correct Answer
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oxidation ...
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The coordination number of cobalt in CoCl₃ ^∙ 6NH₃ is ________.

Correct Answer
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