Question 1

How many 3d electrons does a Mn2+ ion have

Accepted Answer

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

Question 2

The electron configuration of an Fe2+ ion is

Accepted Answer

A)  [Ar]4s24d4. 
B)  [Ar]4s23d6. 
C)  [Ar]3d3. 
D)  [Ar]3d5. 
E)  [Ar]3d6. 
A)  [Ar]4s24d4. 
B)  [Ar]4s23d6. 
C)  [Ar]3d3. 
D)  [Ar]3d5. 
E)  [Ar]3d6.

Question 3

The correct name for [Fe(CO)6]Br3 is:

Accepted Answer

A)  hexacarbonyliron(II) bromide 
B)  hexacarbonyliron(III) bromide 
C)  hexacarbonyltribromoiron(III) 
D)  hexacarbonyltribromoiron(II) 
E)  hexacarbonyliron(III) tribromide 
A)  hexacarbonyliron(II) bromide 
B)  hexacarbonyliron(III) bromide 
C)  hexacarbonyltribromoiron(III) 
D)  hexacarbonyltribromoiron(II) 
E)  hexacarbonyliron(III) tribromide

Question 4

The correct name for Fe(CO)5 is:

Accepted Answer

A)  pentacarbonyliron(V) 
B)  pentacarbonyliron(0) 
C)  hexacarbonyliron(0) 
D)  hexacarbonyliron(V) 
E)  pentacarbonateiron(0) 
A)  pentacarbonyliron(V) 
B)  pentacarbonyliron(0) 
C)  hexacarbonyliron(0) 
D)  hexacarbonyliron(V) 
E)  pentacarbonateiron(0)

Question 5

The total number of electrons in the 3d orbitals of Ti3+ is

Accepted Answer

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

Question 6

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

Question 7

The correct labels for the geometric isomers of [CrF2Cl4]3- shown here are (from left to right) trans and cis.

Accepted Answer

A) True 
 B)False

Question 8

The chemical formula of diamminedichloroplatinum(II) is:
Pt(NH3)2Cl4

Accepted Answer

A) True 
 B)False

Question 9

What is the coordination number of cobalt in [Co(NHS1U1B13S1U1B0)S1U1B16S1U1B0]ClS1U1B13S1U1B0

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
E)  None of the above 
A)  2 
B)  4 
C)  6 
D)  8 
E)  None of the above

Question 10

Labile complexes are coordination complexes that

Accepted Answer

A)  are labeled with a radioactive isotope. 
B)  are thermodynamically stable. 
C)  are thermodynamically unstable. 
D)  undergo rapid ligand exchange reactions. 
E)  undergo very slow ligand exchange reactions. 
A)  are labeled with a radioactive isotope. 
B)  are thermodynamically stable. 
C)  are thermodynamically unstable. 
D)  undergo rapid ligand exchange reactions. 
E)  undergo very slow ligand exchange reactions.

Question 11

How would you expect the molecule 1,10-phenanthroline (shown below) to function as a ligand

Accepted Answer

A)  It would be expected to be a monodentate ligand. 
B)  It would be expected to be a bidentate ligand. 
C)  It would be expected to be a tridentate ligand. 
D)  It would be expected to be a tetradentate ligand. 
E)  It would not be expected to function as a ligand. 
A)  It would be expected to be a monodentate ligand. 
B)  It would be expected to be a bidentate ligand. 
C)  It would be expected to be a tridentate ligand. 
D)  It would be expected to be a tetradentate ligand. 
E)  It would not be expected to function as a ligand.

Question 12

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)  5 
A)  0 
B)  1 
C)  2 
D)  3 
E)  5

Question 13

Ethylenediaminetetraacetic acid (EDTA) is

Accepted Answer

A)  not useful as a chelating agent. 
B)  an effective antidote for heavy metal poisoning (e.g., Pb2+ and Hg2+). 
C)  a monodentate ligand. 
D)  known to form unstable complex ions with Fe3+, Hg2+, and Zn2+. 
E)  known to form complexes with platinum that inhibit the growth of cancerous cells. 
A)  not useful as a chelating agent. 
B)  an effective antidote for heavy metal poisoning (e.g., Pb2+ and Hg2+). 
C)  a monodentate ligand. 
D)  known to form unstable complex ions with Fe3+, Hg2+, and Zn2+. 
E)  known to form complexes with platinum that inhibit the growth of cancerous cells.

Question 14

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). 
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).

Question 15

The number 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. 
A)  2 and 2. 
B)  1 and 1. 
C)  3 and 2. 
D)  1 and 2. 
E)  2 and 4.

Question 16

The correct formula for dicarbonylsilver (I) ion is:

Accepted Answer

A)  Ag(CO)2 
B)  [Ag(CO)2]+ 
C)  [Ag(CO)2]- 
D)  [Ag(CO)2]2+ 
E)  [Ag(CO)2]2- 
A)  Ag(CO)2 
B)  [Ag(CO)2]+ 
C)  [Ag(CO)2]- 
D)  [Ag(CO)2]2+ 
E)  [Ag(CO)2]2-

Question 17

Predict the number of unpaired electrons in the [CrCl6]4- ion.

Accepted Answer

A)  0 
B)  1 
C)  3 
D)  5 
E)  None of the above 
A)  0 
B)  1 
C)  3 
D)  5 
E)  None of the above

Question 18

The correct formula for the dichlorobis(ethylenediamine)chromium(III) ion is

Accepted Answer

A)  [Cr(en)2Cl2]3+. 
B)  [Cr(en)Cl2]+. 
C)  [Cr(en)2Cl2]2+. 
D)  [Cr(en)2Cl2]+. 
E)  [Cr(en)3Cl2]+. 
A)  [Cr(en)2Cl2]3+. 
B)  [Cr(en)Cl2]+. 
C)  [Cr(en)2Cl2]2+. 
D)  [Cr(en)2Cl2]+. 
E)  [Cr(en)3Cl2]+.

Question 19

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

Question 20

The correct name of the complex ion [Cr(en)2(H2O)2]2+ is:
diaquobis(ethylenediamine)chromium(IV) ion

Accepted Answer

A) True 
 B)False

Exam 23: Transition Metals Chemistry and Coordination Compounds

How many 3d electrons does a Mn2+ ion have

The electron configuration of an Fe2+ ion is

The correct name for [Fe(CO)6]Br3 is:

The correct name for Fe(CO)5 is:

The total number of electrons in the 3d orbitals of Ti3+ is

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

The correct labels for the geometric isomers of [CrF2Cl4]3- shown here are (from left to right) trans and cis.

The chemical formula of diamminedichloroplatinum(II) is: Pt(NH3)2Cl4

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

Labile complexes are coordination complexes that

How would you expect the molecule 1,10-phenanthroline (shown below) to function as a ligand

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

Ethylenediaminetetraacetic acid (EDTA) is

The best name for the complex shown below is

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

The correct formula for dicarbonylsilver (I) ion is:

Predict the number of unpaired electrons in the [CrCl6]4- ion.

The correct formula for the dichlorobis(ethylenediamine)chromium(III) ion is

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

The correct name of the complex ion [Cr(en)2(H2O)2]2+ is: diaquobis(ethylenediamine)chromium(IV) ion

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Filters

How many 3d electrons does a Mn²⁺ ion have

The electron configuration of an Fe²⁺ ion is

The correct name for [Fe(CO)₆]Br₃ is:

The correct name for Fe(CO)₅ is:

The total number of electrons in the 3d orbitals of Ti³⁺ is

The best name for K₄[FeCl₂(CN)₄] is

The correct labels for the geometric isomers of [CrF₂Cl₄]^3- shown here are (from left to right) trans and cis.

The chemical formula of diamminedichloroplatinum(II) is: Pt(NH₃)₂Cl₄

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

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

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

Predict the number of unpaired electrons in the [CrCl₆]^4- ion.

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

The correct name of the complex ion [Cr(en)₂(H₂O)₂]²⁺ is: diaquobis(ethylenediamine)chromium(IV) ion