Question 1

What is the crystal field energy level diagram for the complex [Co(CN)6]3-?

Accepted Answer

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

Question 2

Which ligand when bonded to a metal would be incorrectly named?

Accepted Answer

A) H2O,aqua 
B) NH3,carbonyl 
C) CO,carbonyl 
D) I-,iodo 
A) H2O,aqua 
B) NH3,carbonyl 
C) CO,carbonyl 
D) I-,iodo

Question 3

-Which of the above are monodentate ligands?

Accepted Answer

A) All are monodentate. 
B) (a)and (b) 
C) (c)and (d) 
D) None are monodentate. 
A) All are monodentate. 
B) (a)and (b) 
C) (c)and (d) 
D) None are monodentate.

Question 4

The compounds [Cr(H2O)6]Cl3 and [CrCl3(H2O)3] ∙ 3H2O are examples of

Accepted Answer

A) diastereoisomers. 
B) enantiomers. 
C) ionization isomers. 
D) linkage isomers. 
A) diastereoisomers. 
B) enantiomers. 
C) ionization isomers. 
D) linkage isomers.

Question 5

What statement is inconsistent with the chemistry of iron?

Accepted Answer

A) Iron is the fourth most abundant element in the earth's crust. 
B) Iron is obtained from the reduction of hematite (Fe2O3)and magnetite (Fe3O4)by carbon in a blast furnace. 
C) Iron is a relatively hard metal and it is relatively unreactive with haloacids. 
D) The majority of iron in a healthy human is present in the oxygen-carrying protein hemoglobin. 
A) Iron is the fourth most abundant element in the earth's crust. 
B) Iron is obtained from the reduction of hematite (Fe2O3)and magnetite (Fe3O4)by carbon in a blast furnace. 
C) Iron is a relatively hard metal and it is relatively unreactive with haloacids. 
D) The majority of iron in a healthy human is present in the oxygen-carrying protein hemoglobin.

Question 6

Cr3+ has ________ valence electrons.

Accepted Answer

Question 7

The number of transition series is

Accepted Answer

A) one 
B) two 
C) four 
D) seven 
A) one 
B) two 
C) four 
D) seven

Question 8

What statement is most inconsistent with the chemistry of transition elements?

Accepted Answer

A) Bromide,chloride and iodide stabilize the higher oxidation states of the transition elements. 
B) Early transition metal ions with the metal in its lowest oxidation state are good reducing agents. 
C) Ions that have transition metal in their highest oxidation state tend to be good oxidizing agents. 
D) The stability of the higher oxidation states increases down a periodic group. 
A) Bromide,chloride and iodide stabilize the higher oxidation states of the transition elements. 
B) Early transition metal ions with the metal in its lowest oxidation state are good reducing agents. 
C) Ions that have transition metal in their highest oxidation state tend to be good oxidizing agents. 
D) The stability of the higher oxidation states increases down a periodic group.

Question 9

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

Accepted Answer

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

Question 10

The short hand electron configuration of iron in [FeF6]3- is ________.

Accepted Answer

Question 11

Consider the following ethylenediamine complexes.The black sphere represents Co,gray connected spheres represent ethylenediamine,NHS1U1B12S1U1B0CHS1U1B12S1U1B0CHS1U1B12S1U1B0NHS1U1B12S1U1B0,and unshaded spheres represent Br.  
-Which complexes are chiral?

Accepted Answer

A) complexes (1), (2),and (3) 
B) complexes (1), (2),and (4) 
C) complexes (1), (3),and (4) 
D) complexes (2), (3),and (4) 
A) complexes (1), (2),and (3) 
B) complexes (1), (2),and (4) 
C) complexes (1), (3),and (4) 
D) complexes (2), (3),and (4)

Question 12

A complex ion that has a broad absorption band at 530 nm in its visible absorption spectrum will appear to be

Accepted Answer

A) red. 
B) colorless. 
C) green. 
D) aqua. 
A) red. 
B) colorless. 
C) green. 
D) aqua.

Question 13

What is the compound responsible for the green patina seen on bronze monuments?

Accepted Answer

A) CuCO3 
B) Cu2(OH) CO3 
C) Cu(OH)  
D) Cu2(OH)2SO4 
A) CuCO3 
B) Cu2(OH) CO3 
C) Cu(OH)  
D) Cu2(OH)2SO4

Question 14

-Which of the above are bidentate or tridentate ligands,capable of forming chelate rings?

Accepted Answer

A) (a)and (c) 
B) (b)and (d) 
C) (a), (b),and (c) 
D) (a), (b), (c),and (d) 
A) (a)and (c) 
B) (b)and (d) 
C) (a), (b),and (c) 
D) (a), (b), (c),and (d)

Question 15

The element that forms a 2+ ion with the electron configuration [Xe] 4f14 5d8 is ________.

Accepted Answer

Question 16

-Which is the crystal field energy level diagram for an octahedral ML6 complex?

Accepted Answer

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

Question 17

For an octahedral complex what metal d orbitals are directly towards the ligands?

Accepted Answer

A) dxy,dxz 
B) dxy,dxz,dyz 
C) dz²,dx²-y² 
D) dz²,dxz,dyz 
A) dxy,dxz 
B) dxy,dxz,dyz 
C) dz²,dx²-y² 
D) dz²,dxz,dyz

Question 18

Transition elements are located in the ________-block of the periodic table.

Accepted Answer

The answer of Transition elements are located in the ________-block...

Question 19

The third transition series metals are shown below.  
-Which has the greatest density?

Accepted Answer

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

Question 20

What is the name of the complex ion [AuBrCl(CN)2]-?

Accepted Answer

A) bromochlorodicyanogold(I)ion 
B) bromochlorodicyanoaurate(III)ion 
C) bromochlorodicyanoargentate(III)ion 
D) bromochlorodicyanoaurate(IV)ion 
A) bromochlorodicyanogold(I)ion 
B) bromochlorodicyanoaurate(III)ion 
C) bromochlorodicyanoargentate(III)ion 
D) bromochlorodicyanoaurate(IV)ion

Exam 20: Transition Elements and Coordination Chemistry

What is the crystal field energy level diagram for the complex [Co(CN)6]3-?

Which ligand when bonded to a metal would be incorrectly named?

-Which of the above are monodentate ligands?

The compounds [Cr(H2O)6]Cl3 and [CrCl3(H2O)3] ∙ 3H2O are examples of

What statement is inconsistent with the chemistry of iron?

Cr3+ has ________ valence electrons.

The number of transition series is

What statement is most inconsistent with the chemistry of transition elements?

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

The short hand electron configuration of iron in [FeF6]3- is ________.

Consider the following ethylenediamine complexes.The black sphere represents Co,gray connected spheres represent ethylenediamine,NH2CH2CH2NH2,and unshaded spheres represent Br. -Which complexes are chiral?

A complex ion that has a broad absorption band at 530 nm in its visible absorption spectrum will appear to be

What is the compound responsible for the green patina seen on bronze monuments?

-Which of the above are bidentate or tridentate ligands,capable of forming chelate rings?

The element that forms a 2+ ion with the electron configuration [Xe] 4f14 5d8 is ________.

-Which is the crystal field energy level diagram for an octahedral ML6 complex?

For an octahedral complex what metal d orbitals are directly towards the ligands?

Transition elements are located in the ________-block of the periodic table.

The third transition series metals are shown below. -Which has the greatest density?

What is the name of the complex ion [AuBrCl(CN)2]-?

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Filters

What is the crystal field energy level diagram for the complex [Co(CN)₆]^3-?

The compounds [Cr(H₂O)₆]Cl₃ and [CrCl₃(H₂O)₃] ∙ 3H₂O are examples of

Cr³⁺ has ________ valence electrons.

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

The short hand electron configuration of iron in [FeF₆]^3- is ________.

Consider the following ethylenediamine complexes.The black sphere represents Co,gray connected spheres represent ethylenediamine,NH₂CH₂CH₂NH₂,and unshaded spheres represent Br. -Which complexes are chiral?

The element that forms a 2+ ion with the electron configuration [Xe] 4f¹⁴ 5d⁸ is ________.

-Which is the crystal field energy level diagram for an octahedral ML₆ complex?

What is the name of the complex ion [AuBrCl(CN)₂]^-?