Question 1

The ion [Co(NH3) 6]2+ is octahedral and high spin.This complex is

Accepted Answer

A)  paramagnetic,with 1 unpaired electron.
B)  paramagnetic,with 3 unpaired electrons.
C)  paramagnetic,with 4 unpaired electrons.
D)  paramagnetic,with 5 unpaired electrons.
E)  diamagnetic.F) B) and E)
G) A) and C)

Question 2

In a coordination compound involving a complex ion of square planar geometry,which of the following types of isomerism is/are never possible?

Accepted Answer

A)  Geometric
B)  Optical
C)  Linkage
D)  Coordination
E)  More than one of the choices is correct.F) A) and E)
G) A) and B)

Question 3

Why are phosphates being eliminated from detergents?

Accepted Answer

A)  Detergents with phosphates are less efficient cleansers.
B)  By chelating Ca2+ ions,the phosphates allow more efficient cleansing.
C)  Phosphates are important plant nutrients which increase algae growth and deplete oxygen.
D)  None of the.E) A) and B)
F) A) and C)

Question 4

Which of the following octahedral complexes should have the largest crystal field splitting energy,Δ?

Accepted Answer

A)  [Cr(H2O) 6]3+
B)  [Cr(SCN) 6]3
C)  [Cr(NH3) 6]3+
D)  [Cr(CN) 6]3-
E)  [Cr(en) 3]3+ (en = ethylenediamine) F) C) and D)
G) A) and C)

Question 5

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) B) and C)
G) A) and D)

Question 6

Bidentate and polydentate ligands are called ___________ __________.

Accepted Answer

The answer of Bidentate and polydentate ligands are called ___________...

Question 7

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) B) and D)
G) A) and D)

Question 8

A complex ion that undergoes a very slow exchange reaction is called an inert complex.

Accepted Answer

A) True 
 B)False

Question 9

How many 3d electrons does a ground-state Sc3+ ion have?

Accepted Answer

A)  1
B)  3
C)  2
D)  10
E)  0F) All of the above
G) B) and E)

Question 10

What is the electron configuration of a ground-state Cr atom?

Accepted Answer

A)  1s22s22p63s23p64s23d4
B)  1s22s22p63s23p63d6
C)  1s22s22p63s23p64s14d5
D)  1s22s22p63s23p64s24d4
E)  1s22s22p63s23p64s13d5F) D) and E)
G) A) and E)

Question 11

What terms describe the geometrical isomers that are possible for the complex [Pt(NH3)2Cl4]?

Accepted Answer

cis and trans

Question 12

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) C) and D)
G) None of the above

Question 13

Which of the following ligands is most likely to form a low-spin octahedral complex with iron(III) ?

Accepted Answer

A)  Cl-
B)  H2O
C)  NH3
D)  OH-
E)  COF) A) and E)
G) B) and C)

Question 14

In complexes of transition metals,the maximum coordination number of the metal is equal to its number of d electrons.

Accepted Answer

A) True 
 B)False

Question 15

The net rotation of plane-polarized light by a racemic mixture is _______.

Accepted Answer

A)  to the right
B)  to the left
C)  zeroD) A) and B)
E) A) and C)

Question 16

What is used to measure the rotation of polarized light as it passes through an atom?

Accepted Answer

The answer of What is used to measure the rotation...

Question 17

One of the uses of EDTA is in the treatment of ________ ___________.

Accepted Answer

metal poisoning

Question 18

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

Accepted Answer

Lewis acid

Question 19

Which name could correspond to the following coordination compound,where M represents a transition metal cation and L represents a ligand?

Accepted Answer

A)  Hexachloroferrate(III) 
B)  Hexaammineiron(III) 
C)  Hexaaquochromium(II) 
D)  Hexacyanomanganate(II) 
E)  All of the are possible.F) C) and D)
G) A) and E)

Question 20

What are the two types of stereoisomers that coordination compounds may exhibit?

Accepted Answer

geometrica...

Exam 22: Coordination Chemistry

The ion [Co(NH3) 6]2+ is octahedral and high spin.This complex is

Correct AnswerverifiedShow Answer

In a coordination compound involving a complex ion of square planar geometry,which of the following types of isomerism is/are never possible?

Correct AnswerverifiedShow Answer

Why are phosphates being eliminated from detergents?

Correct AnswerverifiedShow Answer

Which of the following octahedral complexes should have the largest crystal field splitting energy,Δ?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Bidentate and polydentate ligands are called ___________ __________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A complex ion that undergoes a very slow exchange reaction is called an inert complex.

Correct AnswerverifiedShow Answer

How many 3d electrons does a ground-state Sc3+ ion have?

Correct AnswerverifiedShow Answer

What is the electron configuration of a ground-state Cr atom?

Correct AnswerverifiedShow Answer

What terms describe the geometrical isomers that are possible for the complex [Pt(NH3)2Cl4]?

Correct Answerverifiedcis and trans

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

Correct AnswerverifiedShow Answer

Which of the following ligands is most likely to form a low-spin octahedral complex with iron(III) ?

Correct AnswerverifiedShow Answer

In complexes of transition metals,the maximum coordination number of the metal is equal to its number of d electrons.

Correct AnswerverifiedShow Answer

The net rotation of plane-polarized light by a racemic mixture is _______.

Correct AnswerverifiedShow Answer

What is used to measure the rotation of polarized light as it passes through an atom?

Correct AnswerverifiedShow Answer

One of the uses of EDTA is in the treatment of ________ ___________.

Correct Answerverifiedmetal poisoning

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

Correct AnswerverifiedLewis acid

Which name could correspond to the following coordination compound,where M represents a transition metal cation and L represents a ligand?

Correct AnswerverifiedShow Answer

What are the two types of stereoisomers that coordination compounds may exhibit?

Correct Answerverifiedgeometrica...View AnswerShow Answer

The ion [Co(NH₃) ₆]²⁺ is octahedral and high spin.This complex is

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Bidentate and polydentate ligands are called _ .

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

How many 3d electrons does a ground-state Sc³⁺ ion have?

Correct Answer
verified

Correct Answer
verified

What terms describe the geometrical isomers that are possible for the complex [Pt(NH₃)₂Cl₄]?

Correct Answer
verified
cis and trans

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

One of the uses of EDTA is in the treatment of ___.

Correct Answer
verified
metal poisoning

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

Correct Answer
verified
Lewis acid

Correct Answer
verified

Correct Answer
verified
geometrica...
View Answer