Question 1

The best name for the complex shown below is

Accepted Answer

A)  cobalt(III) bis(ethylenediamine) bromide.
B)  dibromobis(ethylenediamine) cobalt(III) bromide.
C)  dibromidedi(ethylenediamine) cobalt(III) bromide.
D)  dibromodiethylenediaaminecobalt(III) bromide.
E)  tribromobis(ethylenediamine) cobalt(III) .F) All of the above
G) A) and D)

Question 2

What is the coordination number of cobalt in [Co(NH3)6]Cl3?

Accepted Answer

Question 3

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) C) and D)

Question 4

The electron configuration of a Ti atom is

Accepted Answer

A)  [Ne]3s23d2.
B)  [Ne] 3s24d2.
C)  [Ar]4s23d2.
D)  [Ar]4s24d2.
E)  [Ar]3d4.F) C) and D)
G) B) and E)

Question 5

Write the chemical formula of triammineaquodichlorochromium(III)chloride.

Accepted Answer

The answer of Write the chemical formula of triammineaquodichlorochromium(III)chloride....

Question 6

In the coordination compound [Pt(NH3) 2Cl2], the coordination number and oxidation number of the central atom are, respectively,

Accepted Answer

A)  2, 0.
B)  4, 4.
C)  5, 0.
D)  4, 2.
E)  6, 2.F) C) and E)
G) A) and D)

Question 7

How many unpaired electrons are there in the complex ion [Mn(CN) 6]3-?

Accepted Answer

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

Question 8

What is the oxidation number of Fe in [Fe(CN)6]4-?

Accepted Answer

Question 9

The total number of electrons in the 3d orbitals of a copper atom is

Accepted Answer

A)  6
B)  7
C)  8
D)  9
E)  10F) C) and E)
G) B) and E)

Question 10

Give (a)the oxidation number of the metal, (b)the number of d electrons, (c)the coordination number, (d)the charge of the complex ion, and (e)the number and type of ligands for the coordination compound shown below.

Accepted Answer

(a)+3, (b)3 d electr...

Question 11

In the complex ion [Cr(C2O4) 2(H2O) 2]-, the oxidation number of Cr is

Accepted Answer

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

Question 12

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) C) and E)
G) D) and E)

Question 13

The total number of electrons in the 3d orbitals of Co3+ is

Accepted Answer

A)  4
B)  5
C)  6
D)  7
E)  10F) C) and D)
G) C) and E)

Question 14

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) B) and D)
G) C) and D)

Question 15

Cis-platinum complexes are

Accepted Answer

A)  used in the extraction of silver and gold.
B)  effective antidotes for heavy metal poisoning (e.g., Pb2+ and Hg2+) .
C)  used to provide nutrients for plants.
D)  used to prevent eutrophication of lakes.
E)  effective antitumor agents.F) C) and D)
G) A) and C)

Question 16

Which of these square planar complex ions can have cis-trans isomers?

Accepted Answer

A)  [Pt(NH3) 4]2+
B)  [Ni(NH3) 4]2+
C)  [Pt(NH3) 2Cl2]
D)  [Pt(NH3) Cl3]-
E)  [Ni(NH3) 3Cl]+F) A) and B)
G) A) and C)

Question 17

Which response gives the correct coordination number (C.N.) and oxidation number (O.N.) of the transition metal atom in [Co(NH3) 2(H2O) 2Cl2]+?

Accepted Answer

A)  C.N.= 2; O.N.= +3
B)  C.N.= 3; O.N.= +1
C)  C.N.= 4; O.N.= +2
D)  C.N.= 6; O.N.= +1
E)  C.N.= 6; O.N.= +3F) D) and E)
G) None of the above

Question 18

In the complex ion [ML6]n+, Mn+ has five 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) A) and E)

Question 19

Cis-trans isomerism is exhibited by which one of these ions?

Accepted Answer

A)  [Pd(NH3) 3Cl]+
B)  [Co(NH3) 5Cl]2+
C)  [Fe(CN) 6]3-
D)  All of the above.
E)  None of the above.F) All of the above
G) A) and B)

Question 20

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 B)
G) B) and E)

Exam 22: Transition Metal Chemistry and Coordination Compounds

The coordination compound shown below has

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In the coordination compound [Pt(NH3) 2Cl2], the coordination number and oxidation number of the central atom are, respectively,

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What is the oxidation number of Fe in [Fe(CN)6]4-?

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Give (a)the oxidation number of the metal, (b)the number of d electrons, (c)the coordination number, (d)the charge of the complex ion, and (e)the number and type of ligands for the coordination compound shown below.

Correct Answerverified(a)+3, (b)3 d electr...View AnswerShow Answer

The electron configuration of a Cr3+ ion is

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In the complex ion [ML6]n+, Mn+ has five 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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The total number of electrons in the 3d orbitals of Co3+ is

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The total number of electrons in the 3d orbitals of a copper atom is

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The best name for the complex shown below is

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Which of these square planar complex ions can have cis-trans isomers?

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Cis-trans isomerism is exhibited by which one of these ions?

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What is the coordination number of cobalt in [Co(NH3)6]Cl3?

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Which response gives the correct coordination number (C.N.) and oxidation number (O.N.) of the transition metal atom in [Co(NH3) 2(H2O) 2Cl2]+?

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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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Which of these ligands produces the weakest crystal field?

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The electron configuration of a Ti atom is

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Write the chemical formula of triammineaquodichlorochromium(III)chloride.

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In the complex ion [Cr(C2O4) 2(H2O) 2]-, the oxidation number of Cr is

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Cis-platinum complexes are

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How many unpaired electrons are there in the complex ion [Mn(CN) 6]3-?

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In the coordination compound [Pt(NH₃) ₂Cl₂], the coordination number and oxidation number of the central atom are, respectively,

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What is the oxidation number of Fe in [Fe(CN)₆]^4-?

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(a)+3, (b)3 d electr...
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The electron configuration of a Cr³⁺ ion is

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In the complex ion [ML₆]ⁿ⁺, Mⁿ⁺ has five 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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The total number of electrons in the 3d orbitals of Co³⁺ is

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What is the coordination number of cobalt in [Co(NH₃)₆]Cl₃?

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Which response gives the correct coordination number (C.N.) and oxidation number (O.N.) of the transition metal atom in [Co(NH₃) ₂(H₂O) ₂Cl₂]⁺?

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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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In the complex ion [Cr(C₂O₄) ₂(H₂O) ₂]^-, the oxidation number of Cr is

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How many unpaired electrons are there in the complex ion [Mn(CN) ₆]^3-?

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