Question 1

The ion [Co(NH3) 6]2+ is octahedral and high spin. This complex is

Accepted Answer

A)  paramagnetic, with 1 unpaired electron.
B)  paramagnetic, with 3 unpaired electrons.
C)  paramagnetic, with 4 unpaired electrons.
D)  paramagnetic, with 5 unpaired electrons.
E)  diamagnetic.F) A) and D)
G) B) and D)

Question 2

In the coordination compound K2[Co(en) Cl4], the coordination number (C.N.) and oxidation number (O.N.) of cobalt are

Accepted Answer

A)  C.N. = 6; O.N. = +2.
B)  C.N. = 6; O.N. = +3.
C)  C.N. = 5; O.N. = +2.
D)  C.N. = 5; O.N. = +4.
E)  C.N. = 4; O.N. = +3.F) B) and D)
G) A) and E)

Question 3

In the complex ion [ML6]n+, Mn+ has seven d electrons and L is a strong field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons?

Accepted Answer

A)  0
B)  1
C)  2
D)  3
E)  5F) B) and C)
G) C) and D)

Question 4

Name the complex ion [Ni(CN)4]2-.

Accepted Answer

tetracyano...

Question 5

How many 3d electrons does a V3+ ion have?

Accepted Answer

A)  6
B)  5
C)  4
D)  3
E)  2F) A) and C)
G) A) and D)

Question 6

Write the chemical formula of diamminedichloroplatinum(II).

Accepted Answer

The answer of Write the chemical formula of diamminedichloroplatinum(II)....

Question 7

What is the coordination number of silver in [Ag(NH3)2]Cl?

Accepted Answer

Question 8

Which of these ligands produces the weakest crystal field?

Accepted Answer

A)  CN-
B)  I-
C)  OH-
D)  H2O
E)  NH3F) D) and E)
G) A) and B)

Question 9

The electron configuration of a nickel atom is

Accepted Answer

A)  [Ar]4s23d6.
B)  [Ar]4s13d7.
C)  [Ar]3d8.
D)  [Ar]4s23d8.
E)  [Ar]3d10.F) None of the above
G) A) and B)

Question 10

In the complex ion [ML6]n+, Mn+ has six d electrons and L is a weak field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons?

Accepted Answer

A)  0
B)  1
C)  2
D)  3
E)  4F) B) and C)
G) B) and D)

Question 11

Predict the number of unpaired electrons in the [Fe(CN)6]3- ion.

Accepted Answer

Question 12

How many 3d electrons does a Mn2+ ion have?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) A) and B)
G) None of the above

Question 13

The electron configuration of a Cr3+ ion is

Accepted Answer

A)  [Ar]3d5.
B)  [Ar]4s13d2.
C)  [Ar]3d3.
D)  [Ar]4s13d5.
E)  [Ar]4s23d4.F) None of the above
G) B) and D)

Question 14

The electron configuration of a Co3+ ion is

Accepted Answer

A)  [Ar]3d6.
B)  [Ar]4s13d5.
C)  [Ar] 4s23d4.
D)  [Ar]3d5.
E)  [Ar]3d4.F) B) and D)
G) A) and D)

Question 15

The neutral monodentate ligand L forms the complex ion [CrL6]2+, and the magnetic properties of this complex correspond to 2 unpaired electrons. Is L a strong-field or weak-field ligand? Explain your reasoning.

Accepted Answer

L is a strong-field ligand. Reasoning (a...

Question 16

What terms describe the geometric isomers that are possible for the complex [CrF2Cl4]3-?

Accepted Answer

Question 17

The numbers of geometrical isomers and optical isomers of the complex ion [Co(en) 3]3+ are, respectively,

Accepted Answer

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

Question 18

The coordination compound shown below has

Accepted Answer

A)  two monodentate ligands and two bidentate ligands.
B)  three monodentate ligands and two bidentate ligands.
C)  four monodentate ligands and two bidentate ligands.
D)  one monodentate ligand and four bidentate ligands.
E)  four bidentate ligands.F) A) and E)
G) C) and E)

Question 19

Give the coordination number (C.N.) and oxidation number (O.N.) of the metal atom in the coordination compound [Cr(NH3) 2(en) Cl2].

Accepted Answer

A)  C.N. = 4; O.N. = +2.
B)  C.N. = 5; O.N. = +3.
C)  C.N. = 5; O.N. = +2.
D)  C.N. = 6; O.N. = +3.
E)  C.N. = 6; O.N. = +2.F) B) and D)
G) A) and E)

Question 20

The best name for K4[FeCl2(CN) 4] is

Accepted Answer

A)  tetrapotassium dichlorodicyanoiron(II) .
B)  potassium dichlorodicyanoiron(II) .
C)  potassium dichlorodicyanoferrate(III) .
D)  tetrapotassium dichlorobis(cyano) iron(III) .
E)  potassium dichlorotetracyanoferrate(II) .F) B) and D)
G) B) and C)

Exam 20: The Chemistry of Coordination Compounds

The neutral monodentate ligand L forms the complex ion [CrL6]2+, and the magnetic properties of this complex correspond to 2 unpaired electrons. Is L a strong-field or weak-field ligand? Explain your reasoning.

Correct AnswerverifiedL is a strong-field ligand. Reasoning (a...View AnswerShow Answer

The ion [Co(NH3) 6]2+ is octahedral and high spin. This complex is

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The best name for K4[FeCl2(CN) 4] is

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How many 3d electrons does a V3+ ion have?

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Predict the number of unpaired electrons in the [Fe(CN)6]3- ion.

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The numbers of geometrical isomers and optical isomers of the complex ion [Co(en) 3]3+ are, respectively,

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Write the chemical formula of diamminedichloroplatinum(II).

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How many 3d electrons does a Mn2+ ion have?

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The electron configuration of a nickel atom is

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In the coordination compound K2[Co(en) Cl4], the coordination number (C.N.) and oxidation number (O.N.) of cobalt are

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Give the coordination number (C.N.) and oxidation number (O.N.) of the metal atom in the coordination compound [Cr(NH3) 2(en) Cl2].

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In the complex ion [ML6]n+, Mn+ has seven d electrons and L is a strong field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons?

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Name the complex ion [Ni(CN)4]2-.

Correct Answerverifiedtetracyano...View AnswerShow Answer

In the complex ion [ML6]n+, Mn+ has six d electrons and L is a weak field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons?

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The electron configuration of a Co3+ ion is

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The coordination compound shown below has

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What terms describe the geometric isomers that are possible for the complex [CrF2Cl4]3-?

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Which of these ligands produces the weakest crystal field?

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The electron configuration of a Cr3+ ion is

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What is the coordination number of silver in [Ag(NH3)2]Cl?

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The neutral monodentate ligand L forms the complex ion [CrL₆]²⁺, and the magnetic properties of this complex correspond to 2 unpaired electrons. Is L a strong-field or weak-field ligand? Explain your reasoning.

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L is a strong-field ligand. Reasoning (a...
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The ion [Co(NH₃) ₆]²⁺ is octahedral and high spin. This complex is

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The best name for K₄[FeCl₂(CN) ₄] is

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How many 3d electrons does a V³⁺ ion have?

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Predict the number of unpaired electrons in the [Fe(CN)₆]^3- ion.

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The numbers of geometrical isomers and optical isomers of the complex ion [Co(en) ₃]³⁺ are, respectively,

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How many 3d electrons does a Mn²⁺ ion have?

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In the coordination compound K₂[Co(en) Cl₄], the coordination number (C.N.) and oxidation number (O.N.) of cobalt are

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Give the coordination number (C.N.) and oxidation number (O.N.) of the metal atom in the coordination compound [Cr(NH₃) ₂(en) Cl₂].

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In the complex ion [ML₆]ⁿ⁺, Mⁿ⁺ has seven d electrons and L is a strong field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons?

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Name the complex ion [Ni(CN)₄]^2-.

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tetracyano...
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In the complex ion [ML₆]ⁿ⁺, Mⁿ⁺ has six d electrons and L is a weak field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons?

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The electron configuration of a Co³⁺ion is

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What terms describe the geometric isomers that are possible for the complex [CrF₂Cl₄]^3-?

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The electron configuration of a Cr³⁺ ion is

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What is the coordination number of silver in [Ag(NH₃)₂]Cl?

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