Question 1

-Which group of elements,indicated by letter and shading on the periodic table above,represents the inner transition elements?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 2

Which of the following can function as a chelating agent?

Accepted Answer

A) SH- 
B) H2O 
C) H2NCH2CO2-   
D) SCN - 
A) SH- 
B) H2O 
C) H2NCH2CO2-   
D) SCN -

Question 3

-Which element indicated on the above periodic table has the electron configuration [Ar] 3d10 4s1?

Accepted Answer

A) element A 
B) element B 
C) element C 
D) element D 
A) element A 
B) element B 
C) element C 
D) element D

Question 4

Which of the following complexes are diamagnetic?
[Mn(CN)6]3- [Zn(NH3)4]2+ [Fe(CN)6]4- [FeF6]3-

Accepted Answer

A) [Zn(NH3)4]2+ 
B) [Zn(NH3)4]2+ and [FeF6]3- 
C) [Zn(NH3)4]2+ and [Fe(CN)6]4- 
D) [Mn(CN)6]3-,[Zn(NH3)4]2+ and [Fe(CN)6]4- 
A) [Zn(NH3)4]2+ 
B) [Zn(NH3)4]2+ and [FeF6]3- 
C) [Zn(NH3)4]2+ and [Fe(CN)6]4- 
D) [Mn(CN)6]3-,[Zn(NH3)4]2+ and [Fe(CN)6]4-

Question 5

What is the name of the complex [Ni(H2O)4(NH2CH2CH2NH2)]SO4 ∙ 5H2O?

Accepted Answer

A) aquaethylenediaminenickel(II)sulfate hydrate 
B) tetraaquaethylenediaminenickel(II)sulfate pentahydrate 
C) tetraaquabis(ethylenediamine)nickel(II)sulfate pentahydrate 
D) tetraaquabis(ethylenediamine)nickel(III)sulfate pentahydrate 
A) aquaethylenediaminenickel(II)sulfate hydrate 
B) tetraaquaethylenediaminenickel(II)sulfate pentahydrate 
C) tetraaquabis(ethylenediamine)nickel(II)sulfate pentahydrate 
D) tetraaquabis(ethylenediamine)nickel(III)sulfate pentahydrate

Question 6

Ethylenediaminetetraacetate ion (EDTA4-)is commonly referred to as a ________ ligand.

Accepted Answer

A) monodentate 
B) bidentate 
C) tetradentate 
D) hexadentate 
A) monodentate 
B) bidentate 
C) tetradentate 
D) hexadentate

Question 7

Which ion would you expect to have the largest crystal field splitting Δ?

Accepted Answer

A) [Fe(CN)6]4- 
B) [Fe(CN)6]3- 
C) [Fe(H2O)6]2+ 
D) [Fe(H2O)6]3+ 
A) [Fe(CN)6]4- 
B) [Fe(CN)6]3- 
C) [Fe(H2O)6]2+ 
D) [Fe(H2O)6]3+

Question 8

The second transition series metals are shown below.  
-Which has the lowest melting point?

Accepted Answer

A) Y 
B) Mo 
C) Tc 
D) Cd 
A) Y 
B) Mo 
C) Tc 
D) Cd

Question 9

Which chromium species exists only under acidic conditions?

Accepted Answer

A) Cr(OH)2 
B) Cr(OH)4- 
C) CrO42- 
D) Cr2O72- 
A) Cr(OH)2 
B) Cr(OH)4- 
C) CrO42- 
D) Cr2O72-

Question 10

Fe3+ has ________ valence electrons.

Accepted Answer

Question 11

The first transition series element expected to have the lowest second ionization energy is ________.

Accepted Answer

The answer of The first transition series element expected to...

Question 12

Platinum uses ________ hybrid orbitals to accept electron pairs from ligands in cis-Pt(NH3)2Cl2.

Accepted Answer

Question 13

What is the expected order for increasing octahedral (Δ0)crystal field splitting for ligands?

Accepted Answer

A) halides - 
B) halides - - - < halides 
A) halides - 
B) halides - - - < halides

Question 14

What is the ground-state electron configuration for Co2+ (Z = 27)?

Accepted Answer

A) [Ar] 4s2 3d9 
B) [Ar] 4s2 3d5 
C) [Ar] 3d7 
D) [Ar] 4s1 3d6 
A) [Ar] 4s2 3d9 
B) [Ar] 4s2 3d5 
C) [Ar] 3d7 
D) [Ar] 4s1 3d6

Question 15

-Which is the most common ion formed by element B on the above periodic table?

Accepted Answer

A) B+ 
B) B2+ 
C) B3+ 
D) B4+ 
A) B+ 
B) B2+ 
C) B3+ 
D) B4+

Question 16

Consider the following isomers of [Co(NHS1U1B13S1U1B0)S1U1B14S1U1B0BrS1U1B12S1U1B0]S1U1P1+S1S1P0.The black sphere represents Co,gray spheres represent NHS1U1B13S1U1B0,and unshaded spheres represent Br.  
-Which are cis-isomers?

Accepted Answer

A) isomers (1)and (2) 
B) isomers (1)and (3) 
C) isomers (2)and (4) 
D) isomers (3)and (4) 
A) isomers (1)and (2) 
B) isomers (1)and (3) 
C) isomers (2)and (4) 
D) isomers (3)and (4)

Question 17

Using shorthand notation,the electron configuration of Co3+ is ________.

Accepted Answer

Question 18

When the oxalate ion,C2O42- is bonded to the iron(III)ion in the complex ion [Fe(C2O4)3]3-,a ________-membered chelate ring is formed.

Accepted Answer

A) 3 
B) 4 
C) 5 
D) 6 
A) 3 
B) 4 
C) 5 
D) 6

Question 19

Describe what happens when 3.0 M NH3 is slowly added to an aqueous solution of CuSO4.

Accepted Answer

A) A blue precipitate of Cu(OH)2 forms. 
B) A royal blue complex of [Cu(NH3)4]2+ is formed. 
C) A blue precipitate of Cu(OH)2 is formed which is then converted to the royal blue complex [Cu(NH3)4]2+. 
D) A royal blue complex of [Cu(NH3)4]2+ is formed which then is converted to a blue precipitate of Cu(OH)2. 
A) A blue precipitate of Cu(OH)2 forms. 
B) A royal blue complex of [Cu(NH3)4]2+ is formed. 
C) A blue precipitate of Cu(OH)2 is formed which is then converted to the royal blue complex [Cu(NH3)4]2+. 
D) A royal blue complex of [Cu(NH3)4]2+ is formed which then is converted to a blue precipitate of Cu(OH)2.

Question 20

What is the coordination number of the Au atom in K [Au(CN)2(SCN)2]?

Accepted Answer

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

Exam 20: Transition Elements and Coordination Chemistry

-Which group of elements,indicated by letter and shading on the periodic table above,represents the inner transition elements?

Which of the following can function as a chelating agent?

-Which element indicated on the above periodic table has the electron configuration [Ar] 3d10 4s1?

Which of the following complexes are diamagnetic? [Mn(CN)6]3- [Zn(NH3)4]2+ [Fe(CN)6]4- [FeF6]3-

What is the name of the complex [Ni(H2O)4(NH2CH2CH2NH2)]SO4 ∙ 5H2O?

Ethylenediaminetetraacetate ion (EDTA4-)is commonly referred to as a ________ ligand.

Which ion would you expect to have the largest crystal field splitting Δ?

The second transition series metals are shown below. -Which has the lowest melting point?

Which chromium species exists only under acidic conditions?

Fe3+ has ________ valence electrons.

The first transition series element expected to have the lowest second ionization energy is ________.

Platinum uses ________ hybrid orbitals to accept electron pairs from ligands in cis-Pt(NH3)2Cl2.

What is the expected order for increasing octahedral (Δ0)crystal field splitting for ligands?

What is the ground-state electron configuration for Co2+ (Z = 27)?

-Which is the most common ion formed by element B on the above periodic table?

Consider the following isomers of [Co(NH3)4Br2]+.The black sphere represents Co,gray spheres represent NH3,and unshaded spheres represent Br. -Which are cis-isomers?

Using shorthand notation,the electron configuration of Co3+ is ________.

When the oxalate ion,C2O42- is bonded to the iron(III)ion in the complex ion [Fe(C2O4)3]3-,a ________-membered chelate ring is formed.

Describe what happens when 3.0 M NH3 is slowly added to an aqueous solution of CuSO4.

What is the coordination number of the Au atom in K [Au(CN)2(SCN)2]?

Chemistry: Matter and Measurement

Atoms, molecules, and Ions

Formulas, equations, and Moles

Reactions in Aqueous Solutions

Periodicity and the Atomic Structure of Atoms

Ionic Bonds and Some Main-Group Chemistry

Covalent Bonds and Molecular Structure

Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids,solids,and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Hydrogen, oxygen, and Water

The Main-Group Elements

Metals and Solid-State Materials

Nuclear Chemistry

Organic and Biological Chemistry

Filters

-Which element indicated on the above periodic table has the electron configuration [Ar] 3d¹⁰ 4s¹?

Which of the following complexes are diamagnetic? [Mn(CN)₆]^3- [Zn(NH₃)₄]²⁺ [Fe(CN)₆]^4- [FeF₆]^3-

What is the name of the complex [Ni(H₂O)₄(NH₂CH₂CH₂NH₂)]SO₄ ∙ 5H₂O?

Ethylenediaminetetraacetate ion (EDTA^4-)is commonly referred to as a ________ ligand.

Fe³⁺ has ________ valence electrons.

Platinum uses ________ hybrid orbitals to accept electron pairs from ligands in cis-Pt(NH₃)₂Cl₂.

What is the expected order for increasing octahedral (Δ₀)crystal field splitting for ligands?

What is the ground-state electron configuration for Co²⁺ (Z = 27)?

Consider the following isomers of [Co(NH₃)₄Br₂]⁺.The black sphere represents Co,gray spheres represent NH₃,and unshaded spheres represent Br. -Which are cis-isomers?

Using shorthand notation,the electron configuration of Co³⁺ is ________.

When the oxalate ion,C₂O₄^2- is bonded to the iron(III)ion in the complex ion [Fe(C₂O₄)₃]^3-,a ________-membered chelate ring is formed.

Describe what happens when 3.0 M NH₃ is slowly added to an aqueous solution of CuSO₄.

What is the coordination number of the Au atom in K [Au(CN)₂(SCN)₂]?