Question 1

-Using the above schematic of an artist's color wheel,determine the color absorbed if a substance is seen as being green in color.

Accepted Answer

A) blue 
B) orange 
C) red 
D) violet 
A) blue 
B) orange 
C) red 
D) violet

Question 2

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 3

Which of the following is a disproportionation reaction?

Accepted Answer

A) Cu2S(l)+ O2(g)→ 2 Cu(l)+ SO2(g) 
B) 3 Cu(s)+ 2 NO3-(aq)+ 8 H+(aq)→ 3 Cu2+(aq)+ 2 NO(g)+ 4 H2O(l) 
C) 2 Cu+(aq)→ Cu(s)+ Cu2+(aq) 
D) Cu2+(aq)+ 4 NH3(aq)→ Cu(NH3)42+(aq) 
A) Cu2S(l)+ O2(g)→ 2 Cu(l)+ SO2(g) 
B) 3 Cu(s)+ 2 NO3-(aq)+ 8 H+(aq)→ 3 Cu2+(aq)+ 2 NO(g)+ 4 H2O(l) 
C) 2 Cu+(aq)→ Cu(s)+ Cu2+(aq) 
D) Cu2+(aq)+ 4 NH3(aq)→ Cu(NH3)42+(aq)

Question 4

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 5

Copper has the anomalous short-hand electron configuration ________.

Accepted Answer

The answer of Copper has the anomalous short-hand electron configuration...

Question 6

The coordination number of platinum in Pt(NH3)2Cl2 is ________.

Accepted Answer

Question 7

The number of diastereoisomers possible for [Co(en)2Cl2]+ is ________.

Accepted Answer

Question 8

How many d electrons are there on the Fe metal atom in Li3[Fe(OH)6]?

Accepted Answer

A) 1 
B) 3 
C) 5 
D) 6 
A) 1 
B) 3 
C) 5 
D) 6

Question 9

What is the ground-state electron configuration for the element cobalt (Z = 27)?

Accepted Answer

A) [Ar] 4s2 3d7 
B) [Ar] 3d9 
C) [Ar] 4s2 4p6 5s1 
D) [Ar] 3d7 
A) [Ar] 4s2 3d7 
B) [Ar] 3d9 
C) [Ar] 4s2 4p6 5s1 
D) [Ar] 3d7

Question 10

-Which is the crystal field energy level diagram for a tetrahedral ML4?

Accepted Answer

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

Question 11

Which of the following can function as a bidentate ligand?

Accepted Answer

A) sulfide 
B) hydroxide 
C) oxalate 
D) fluoride 
A) sulfide 
B) hydroxide 
C) oxalate 
D) fluoride

Question 12

-Which of the following elements is an inner transition metal?

Accepted Answer

A) No 
B) Ni 
C) Ne 
D) Na 
A) No 
B) Ni 
C) Ne 
D) Na

Question 13

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 14

Which complex cannot exist as enantiomers?

Accepted Answer

A) [CoF2(H2O)4]+ 
B) [Co(gly)3]3+ 
C) cis-[CrCl2(C2O4)2]+ 
D) [Fe(C2O4)2(en)]- 
A) [CoF2(H2O)4]+ 
B) [Co(gly)3]3+ 
C) cis-[CrCl2(C2O4)2]+ 
D) [Fe(C2O4)2(en)]-

Question 15

Based on the variation in Zeff,which oxoanion should be the strongest oxidizing agent?

Accepted Answer

A) VO43- 
B) CrO42- 
C) MnO42- 
D) FeO42- 
A) VO43- 
B) CrO42- 
C) MnO42- 
D) FeO42-

Question 16

What are two of the major components of stainless steel?

Accepted Answer

A) iron and carbon 
B) iron and chromium 
C) iron and titanium 
D) iron and tungsten 
A) iron and carbon 
B) iron and chromium 
C) iron and titanium 
D) iron and tungsten

Question 17

Which first row transition element has the highest melting point?

Accepted Answer

A) Sc 
B) V 
C) Fe 
D) Zn 
A) Sc 
B) V 
C) Fe 
D) Zn

Question 18

The third transition series metals are shown below.  
-Which has the largest atomic radius?

Accepted Answer

A) La 
B) W 
C) Os 
D) Hg 
A) La 
B) W 
C) Os 
D) Hg

Question 19

What is the oxidation state of the Co atom in [Co(NH3)5Cl](NO3)2?

Accepted Answer

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

Question 20

Which of the following species is diamagnetic?

Accepted Answer

A) an isolated,gas-phase V3+ ion 
B) a high-spin octahedral Fe2+ complex 
C) an isolated,gas-phase Cu2+ ion 
D) a low-spin octahedral Co3+ complex 
A) an isolated,gas-phase V3+ ion 
B) a high-spin octahedral Fe2+ complex 
C) an isolated,gas-phase Cu2+ ion 
D) a low-spin octahedral Co3+ complex

Exam 20: Transition Elements and Coordination Chemistry

-Using the above schematic of an artist's color wheel,determine the color absorbed if a substance is seen as being green in color.

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

Which of the following is a disproportionation reaction?

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.

Copper has the anomalous short-hand electron configuration ________.

The coordination number of platinum in Pt(NH3)2Cl2 is ________.

The number of diastereoisomers possible for [Co(en)2Cl2]+ is ________.

How many d electrons are there on the Fe metal atom in Li3[Fe(OH)6]?

What is the ground-state electron configuration for the element cobalt (Z = 27)?

-Which is the crystal field energy level diagram for a tetrahedral ML4?

Which of the following can function as a bidentate ligand?

-Which of the following elements is an inner transition metal?

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

Which complex cannot exist as enantiomers?

Based on the variation in Zeff,which oxoanion should be the strongest oxidizing agent?

What are two of the major components of stainless steel?

Which first row transition element has the highest melting point?

The third transition series metals are shown below. -Which has the largest atomic radius?

What is the oxidation state of the Co atom in [Co(NH3)5Cl](NO3)2?

Which of the following species is diamagnetic?

Chemical Tools: Experimentation and Measurement

Atoms, molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Periodicity and the Electronic Structure of Atoms

Ionic Compounds: Periodic Trends and Bonding

Covalent Bonding and Electron-Dot Structures

Covalent Compounds: Bonding Theories 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

Nuclear Chemistry

Metals and Solid-State Materials

The Main-Group Elements

Connections to Organic and Biological Chemistry

Filters

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

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.

The coordination number of platinum in Pt(NH₃)₂Cl₂ is ________.

The number of diastereoisomers possible for [Co(en)₂Cl₂]⁺ is ________.

How many d electrons are there on the Fe metal atom in Li₃[Fe(OH)₆]?

-Which is the crystal field energy level diagram for a tetrahedral ML₄?

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

Based on the variation in Z_eff,which oxoanion should be the strongest oxidizing agent?

What is the oxidation state of the Co atom in [Co(NH₃)₅Cl](NO₃)₂?