Question 1

How many 3d electrons does a ground-state Pd2+ ion have?

Accepted Answer

A)   8
B)   10
C)   9
D)   7
E)   6F) A) and B)
G) A) and E)

Question 2

In the spectrochemical series, which one of the following ligands has the strongest field?

Accepted Answer

A)   H2O
B)   CN-
C)   NH3
D)   OH-
E)   Cl-F) None of the above
G) A) and C)

Question 3

What is the electron configuration of a ground-state Cu+ ion?

Accepted Answer

A)   [Ar]3d10
B)   [Ar]4d10
C)   [Ar]3d9
D)   [Ar]4d9
E)   None of these choices.F) A) and B)
G) C) and D)

Question 4

Which of the following geometries is not common in transition-metal complex ions?

Accepted Answer

A)   Tetrahedral
B)   Octahedral
C)   Linear
D)   Trigonal planar
E)   Square planarF) B) and C)
G) B) and E)

Question 5

What is the coordination number of cobalt in the complex ion [Co(en) Cl4]-? (en = ethylenediamine)

Accepted Answer

A)   1
B)   2
C)   4
D)   6
E)   8F) A) and E)
G) A) and B)

Question 6

Which of the following metals is capable of forming complexes spanning the largest range of oxidation numbers?

Accepted Answer

A)   Cu
B)   Sc
C)   Fe
D)   Mn
E)   NiF) A) and C)
G) A) and B)

Question 7

How many 3d electrons does a ground-state Nb3+ ion have?

Accepted Answer

A)   2
B)   4
C)   3
D)   10
E)   5F) A) and D)
G) C) and D)

Question 8

Which of the following metals is capable of forming complexes spanning the smallest range of oxidation numbers?

Accepted Answer

A)   Cu
B)   Sc
C)   Fe
D)   Mn
E)   NiF) D) and E)
G) A) and B)

Question 9

In a reaction between a metal ion and a group of anions or a polar molecule, the anions or polar molecule acts as a ________ ________.

Accepted Answer

The answer of In a reaction between a metal ion...

Question 10

Which of the following ligands is most likely to form a high-spin octahedral complex with cobalt(II) ?

Accepted Answer

A)   CN-
B)   en (ethylenediamine) 
C)   NH3
D)   CO
E)   I-F) A) and C)
G) None of the above

Question 11

What is the difference between a coordination compound and a complex ion?

Accepted Answer

A coordination compound genera...

Question 12

The compound Rh(CO)(H)(PH3)2 forms cis and trans isomers. Use this information to predict the geometry of this complex isomer.

Accepted Answer

The complex has four ligands a...

Question 13

What is the name of the molecules or ions that surround the metal in a complex ion?

Accepted Answer

A)   Chelaters
B)   Donors
C)   Acceptors
D)   Coordinators
E)   LigandsF) A) and D)
G) All of the above

Question 14

Cisplatin complexes are

Accepted Answer

A)   used in the extraction of silver and gold.
B)   effective antidotes for heavy metal poisoning (e.g., Pb2+ and Hg2+) .
C)   used to provide nutrients for plants.
D)   used to prevent eutrophication of lakes.
E)   effective antitumor agents.F) B) and C)
G) A) and E)

Question 15

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.F) D) and E)
G) A) and D)

Question 16

What is the electron configuration of a ground-state Zn2+ ion?

Accepted Answer

A)   1s22s22p63s23p64s13d9
B)   1s22s22p63s23p64s14d9
C)   1s22s22p63s23p64s23d8
D)   1s22s22p63s23p64s24d8
E)   1s22s22p63s23p63d10F) A) and B)
G) A) and E)

Question 17

Which statement is correct about coordination compounds?

Accepted Answer

A)   They consist only of nonmetals.
B)   They contain ionic bonds.
C)   They are formed by reactions of metal ions with groups of anions or polar molecules.
D)   They contain only metals.E) B) and C)
F) A) and D)

Question 18

In the complex ion [Fe(CN) 6]4-, what is the oxidation number of Fe?

Accepted Answer

A)   +1
B)   +2
C)   +3
D)   -4
E)   +6F) C) and D)
G) C) and E)

Question 19

Why is the +2 oxidation state so common among transition elements?

Accepted Answer

The outermost electr...

Question 20

Which of the following ions is paramagnetic?

Accepted Answer

A)   Sc3+
B)   Ti4+
C)   Mn7+
D)   Ni2+
E)   V5+F) A) and D)
G) B) and C)

Exam 22: Coordination Chemistry

Which of the following geometries is not common in transition-metal complex ions?

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What is the difference between a coordination compound and a complex ion?

Correct AnswerverifiedA coordination compound genera...View AnswerShow Answer

In the complex ion [Fe(CN) 6]4-, what is the oxidation number of Fe?

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In the spectrochemical series, which one of the following ligands has the strongest field?

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Which of the following metals is capable of forming complexes spanning the smallest range of oxidation numbers?

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In a reaction between a metal ion and a group of anions or a polar molecule, the anions or polar molecule acts as a ________ ________.

Correct AnswerverifiedShow Answer

Why is the +2 oxidation state so common among transition elements?

Correct AnswerverifiedThe outermost electr...View AnswerShow Answer

How many 3d electrons does a ground-state Nb3+ ion have?

Correct AnswerverifiedShow Answer

What is the name of the molecules or ions that surround the metal in a complex ion?

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The compound Rh(CO)(H)(PH3)2 forms cis and trans isomers. Use this information to predict the geometry of this complex isomer.

Correct AnswerverifiedThe complex has four ligands a...View AnswerShow Answer

How many 3d electrons does a ground-state Pd2+ ion have?

Correct AnswerverifiedShow Answer

What is the electron configuration of a ground-state Cu+ ion?

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What is the coordination number of cobalt in the complex ion [Co(en) Cl4]-? (en = ethylenediamine)

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Which of the following metals is capable of forming complexes spanning the largest range of oxidation numbers?

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Cisplatin complexes are

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Ethylenediaminetetraacetic acid (EDTA) is

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Which of the following ligands is most likely to form a high-spin octahedral complex with cobalt(II) ?

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What is the electron configuration of a ground-state Zn2+ ion?

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Which statement is correct about coordination compounds?

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Which of the following ions is paramagnetic?

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A coordination compound genera...
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In the complex ion [Fe(CN) ₆]^4-, what is the oxidation number of Fe?

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In a reaction between a metal ion and a group of anions or a polar molecule, the anions or polar molecule acts as a .

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The outermost electr...
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How many 3d electrons does a ground-state Nb³⁺ ion have?

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The compound Rh(CO)(H)(PH₃)₂ forms cis and trans isomers. Use this information to predict the geometry of this complex isomer.

Correct Answer
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The complex has four ligands a...
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How many 3d electrons does a ground-state Pd²⁺ ion have?

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What is the electron configuration of a ground-state Cu⁺ ion?

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What is the coordination number of cobalt in the complex ion [Co(en) Cl₄]^-? (en = ethylenediamine)

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What is the electron configuration of a ground-state Zn²⁺ ion?

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