Question 1

Which transition metal is valued for its high electrical conductivity and resistance to corrosion,and is widely used for plumbing?

Accepted Answer

A) iron 
B) manganese 
C) magnesium 
D) cobalt 
E) copper 
A) iron 
B) manganese 
C) magnesium 
D) cobalt 
E) copper

Question 2

Transition metals display great similarities

Accepted Answer

A) within a given period 
B) within a given vertical group 
C) with the semimetals 
D) all of these 
E) A and B only 
A) within a given period 
B) within a given vertical group 
C) with the semimetals 
D) all of these 
E) A and B only

Question 3

How many unpaired electrons are there in the tetrahedral complex ion [FeCl4]-?

Accepted Answer

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

Question 4

Which of the following are structural isomers?
I.coordination isomers
II.linkage isomers
III.geometrical isomers
IV.optical isomers

Accepted Answer

A) I,III 
B) II,IV 
C) I,III,IV 
D) II,III 
E) I,II 
A) I,III 
B) II,IV 
C) I,III,IV 
D) II,III 
E) I,II

Question 5

The complex FeL62+,where L is a neutral ligand,is known to be diamagnetic.The number of d electrons in this complex ion is:

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
E) 8 
A) 4 
B) 5 
C) 6 
D) 7 
E) 8

Question 6

All tetrahedral complex ions are high spin.

Accepted Answer

A) True 
 B)False

Question 7

What are the oxidation numbers of each central metal atom in the following coordination compounds? K3[Fe(CN)6],[Cr(NH3)4Br2]Br,[Ni(H2O)6]Cl2,Na2[TaF7]

Accepted Answer

A) 3,3,3,5 
B) 3,3,2,7 
C) -3,3,2,5 
D) -3,1,2,5 
E) 3,3,2,5 
A) 3,3,3,5 
B) 3,3,2,7 
C) -3,3,2,5 
D) -3,1,2,5 
E) 3,3,2,5

Question 8

The complex ions containing Zn2+ are intensely colored.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following ligands are capable of linkage isomerism?
N-
NO2-
NH3
NH2CH2CH2NH2
OCN-
Cl-
H2O
SCN-

Accepted Answer

Question 10

Here are some crystal field representations of d electrons in an octahedral complex:
I)   II)   III)   IV)   V)   Choose the representation that fits the transition metal atom in the following species:
-K4Mn(CN)6 (assume strong field)

Accepted Answer

A) representation I 
B) representation II 
C) representation III 
D) representation IV 
E) representation V 
A) representation I 
B) representation II 
C) representation III 
D) representation IV 
E) representation V

Question 11

How many d electrons are present on the metal ion in the complex ion PtCl62-?

Accepted Answer

A) 8 
B) 6 
C) 4 
D) 3 
E) 2 
A) 8 
B) 6 
C) 4 
D) 3 
E) 2

Question 12

Addition of AgNO3 to aqueous solutions of the complex results in a cloudy white precipitate,presumably AgCl.You dissolve 0.1000 g of the complex in H2O and perform a precipitation titration with 0.0500 M AgNO3 as the titrant.Using an electrode that is sensitive to [Ag+],you reach the endpoint after 9.00 mL of titrant are added.How many grams of chloride ion were present in the 0.1000-g sample?

Accepted Answer

A) 4.50 $\times$ 10-4 
B) 5.00 $\times$ 10-3 
C) 1.77 $\times$ 10-3 
D) 6.38 $\times$ 10-2 
E) 1.60 $\times$ 10-2 
A) 4.50 $\times$ 10-4 
B) 5.00 $\times$ 10-3 
C) 1.77 $\times$ 10-3 
D) 6.38 $\times$ 10-2 
E) 1.60 $\times$ 10-2

Question 13

Which of the following is true?

Accepted Answer

A) The first ionization energy for Zn is significantly higher than that of Sc. 
B) The first ionization energy for Zn is significantly lower than that of Sc. 
C) The third ionization energy for Zn is significantly higher than that of Sc. 
D) The third ionization energy for Zn is significantly lower than that of Sc. 
E) Two of these are correct. 
A) The first ionization energy for Zn is significantly higher than that of Sc. 
B) The first ionization energy for Zn is significantly lower than that of Sc. 
C) The third ionization energy for Zn is significantly higher than that of Sc. 
D) The third ionization energy for Zn is significantly lower than that of Sc. 
E) Two of these are correct.

Question 14

The electron configuration of Ti2+ is

Accepted Answer

A) [Ar] 4s2 
B) [Ar] 4s13d1 
C) [Ar] 3d2 
D) [Ar] 4s23d2 
E) none of these 
A) [Ar] 4s2 
B) [Ar] 4s13d1 
C) [Ar] 3d2 
D) [Ar] 4s23d2 
E) none of these

Question 15

The spectrochemical series is I- - - - - 2O 3 2- - Which of the following complexes will absorb visible radiation of the highest energy (shortest wavelength)?

Accepted Answer

A) [Co(H2O)6]3+ 
B) [Co(I)6]3- 
C) [Co(OH)6]3- 
D) [Co(en)3]3+ 
E) [Co(NH3)6]3+ 
A) [Co(H2O)6]3+ 
B) [Co(I)6]3- 
C) [Co(OH)6]3- 
D) [Co(en)3]3+ 
E) [Co(NH3)6]3+

Question 16

A certain complex ion has a distorted octahedral structure in which the ligands along the plus and minus z axes are compressed (pushed in closer to the central metal ion).The d orbital splitting diagram for this complex ion would be:

Accepted Answer

A) ________   ________  
________ ________    
________   
B) ________ ________     ________ ________ ________       
C) ________   ________  
________  
________ ________     
D) ________ ________ ________       ________ ________     
E) ________ ________     ________  
________  
________   
A) ________   ________  
________ ________    
________   
B) ________ ________     ________ ________ ________       
C) ________   ________  
________  
________ ________     
D) ________ ________ ________       ________ ________     
E) ________ ________     ________  
________  
________

Question 17

The transition metal __________ is present in vitamin B12.

Accepted Answer

A) nickel 
B) titanium 
C) cobalt 
D) zinc 
E) chromium 
A) nickel 
B) titanium 
C) cobalt 
D) zinc 
E) chromium

Question 18

What is the formula for the pentaamminehydroxocopper(II)ion?

Accepted Answer

A) [Cu(NH3)(OH)5]3- 
B) [Cu(NH3)5(OH)5]2+ 
C) [Cu(NH3)5(OH)]2+ 
D) [Cu(NH3)5(OH)5]3- 
E) [Cu(NH3)5(OH)]+ 
A) [Cu(NH3)(OH)5]3- 
B) [Cu(NH3)5(OH)5]2+ 
C) [Cu(NH3)5(OH)]2+ 
D) [Cu(NH3)5(OH)5]3- 
E) [Cu(NH3)5(OH)]+

Question 19

The complex ion Ni(NH3)62+ (two unpaired electrons)is classified as:

Accepted Answer

A) weak field 
B) strong field 
C) no way to tell 
A) weak field 
B) strong field 
C) no way to tell

Question 20

The reducing abilities of the first-row transition metals generally __________ going from left to right across the period.

Accepted Answer

A) decrease 
B) increase 
C) stay the same 
D) none of these 
E) remain at 1.0 V 
A) decrease 
B) increase 
C) stay the same 
D) none of these 
E) remain at 1.0 V

Exam 21: Transition Metals and Coordination Chemistry

Which transition metal is valued for its high electrical conductivity and resistance to corrosion,and is widely used for plumbing?

Transition metals display great similarities

How many unpaired electrons are there in the tetrahedral complex ion [FeCl4]-?

Which of the following are structural isomers? I.coordination isomers II.linkage isomers III.geometrical isomers IV.optical isomers

The complex FeL62+,where L is a neutral ligand,is known to be diamagnetic.The number of d electrons in this complex ion is:

All tetrahedral complex ions are high spin.

What are the oxidation numbers of each central metal atom in the following coordination compounds? K3[Fe(CN)6],[Cr(NH3)4Br2]Br,[Ni(H2O)6]Cl2,Na2[TaF7]

The complex ions containing Zn2+ are intensely colored.

Which of the following ligands are capable of linkage isomerism? N- NO2- NH3 NH2CH2CH2NH2 OCN- Cl- H2O SCN-

Here are some crystal field representations of d electrons in an octahedral complex: I) II) III) IV) V) Choose the representation that fits the transition metal atom in the following species: -K4Mn(CN)6 (assume strong field)

How many d electrons are present on the metal ion in the complex ion PtCl62-?

Which of the following is true?

The electron configuration of Ti2+ is

The spectrochemical series is I- < Br- < Cl- < F- < OH- < H2O < NH3 < en < NO2- < CN- Which of the following complexes will absorb visible radiation of the highest energy (shortest wavelength)?

A certain complex ion has a distorted octahedral structure in which the ligands along the plus and minus z axes are compressed (pushed in closer to the central metal ion).The d orbital splitting diagram for this complex ion would be:

The transition metal __________ is present in vitamin B12.

What is the formula for the pentaamminehydroxocopper(II)ion?

The complex ion Ni(NH3)62+ (two unpaired electrons)is classified as:

The reducing abilities of the first-row transition metals generally __________ going from left to right across the period.

Chemical Foundations

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Filters

How many unpaired electrons are there in the tetrahedral complex ion [FeCl₄]^-?

The complex FeL₆²⁺,where L is a neutral ligand,is known to be diamagnetic.The number of d electrons in this complex ion is:

What are the oxidation numbers of each central metal atom in the following coordination compounds? K₃[Fe(CN)₆],[Cr(NH₃)₄Br₂]Br,[Ni(H₂O)₆]Cl₂,Na₂[TaF₇]

The complex ions containing Zn²⁺ are intensely colored.

Which of the following ligands are capable of linkage isomerism? N^- NO₂^- NH₃ NH₂CH₂CH₂NH₂ OCN^- Cl^- H₂O SCN^-

Here are some crystal field representations of d electrons in an octahedral complex: I) II) III) IV) V) Choose the representation that fits the transition metal atom in the following species: -K₄Mn(CN)₆ (assume strong field)

How many d electrons are present on the metal ion in the complex ion PtCl₆²^-?

The electron configuration of Ti²⁺ is

The spectrochemical series is I^- < Br^- < Cl^- < F^- < OH^- < H₂O < NH₃ < en < NO₂^- < CN^- Which of the following complexes will absorb visible radiation of the highest energy (shortest wavelength)?

The transition metal __________ is present in vitamin B₁₂.

The complex ion Ni(NH₃)₆²⁺ (two unpaired electrons)is classified as: