Question 1

Which of the following ions is least likely to form colored compounds?

Accepted Answer

A)  Mn2+
B)  Cr5+
C)  Sc3+
D)  Fe3+
E)  Co2+F) A) and D)
G) C) and D)

Question 2

A certain transition element has the stable oxidation states of +2,+3,+5,and +6.In which state will the element be most likely to form an ionic bond with chlorine?

Accepted Answer

A)  +2
B)  +3
C)  +4
D)  +5
E)  +6F) B) and D)
G) C) and E)

Question 3

According to Valence Bond theory,in the square planar Ni(CN) 42- complex ion,the orbital hybridization pattern is

Accepted Answer

A)  sp3
B)  dsp2
C)  d2sp
D)  d2sp3
E)  None of these choices is correct.F) A) and B)
G) C) and D)

Question 4

Which of the following ions is most likely to form colored compounds?

Accepted Answer

A)  Sc3+
B)  Cu+
C)  Zn2+
D)  Cr3+
E)  Ca2+F) All of the above
G) A) and B)

Question 5

Square planar complexes can exhibit both geometric and optical isomerism.

Accepted Answer

A) True 
 B)False

Question 6

The dxy and the orbitals dx2 - y2 both lie in the xy plane,yet for a metal ion in an octahedral complex the energy of the dxy orbital is lower than that of the dx2 - y2 orbital.Explain this using the arguments of crystal field theory.

Accepted Answer

The d_xy orbital lobes are directed between...

Question 7

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 B)
G) None of the above

Question 8

Consider the following structures (1 and 2 are octahedral;3 and 4 are square planar) . 
Which one of the following statements about the above structures is correct?

Accepted Answer

A)  1 and 2 are superimposable.
B)  1 and 2 are geometric isomers.
C)  3 and 4 are structural isomers.
D)  3 and 4 are optical isomers.
E)  3 and 4 are geometric isomers.F) A) and B)
G) A) and C)

Question 9

The M2+ ions of the first transition series of elements all have the general electronic configuration [Ar]4s23dx,where x is an integer from 1 to 8.

Accepted Answer

A) True 
 B)False

Question 10

a.Explain how the crystal field theory can use the magnitude of the splitting energy $\Delta$ to provide an explanation of the color and magnetic properties of octahedral complexes.
b.In promoting an electron from the t2g set of orbitals to the eg set,an octahedral complex absorbs a photon with a wavelength $\lambda$ of 523 nm.Calculate the value of $\Delta$ in the complex,in kJ/mol.

Accepted Answer

a.The energy needed for a photon to exci...

Question 11

Which of the following ligands could participate in linkage isomerism?

Accepted Answer

A)  NH3
B)  H2O
C)  NH4+
D)  NO2-
E)  ethylenediamineF) A) and B)
G) A) and C)

Question 12

a.State the requirement for two molecules to be optical isomers.
b.A complex ion MABCD2+ (where A,B,C and D are different unidentate ligands)rotates the plane of polarized light.Deduce the geometry of the complex and draw the optical isomers of this ionic formula.

Accepted Answer

a.The molecules must be non-su...

Question 13

The ground state electron configuration of Zn2+ is:

Accepted Answer

A)  [Ar]4s23d8
B)  [Ar]4s23d10
C)  [Ar]4s13d9
D)  [Ar]3d10
E)  [Ar]3d8F) None of the above
G) B) and D)

Question 14

A certain transition metal complex has the formula MX42+.If the metal ion has a d8 electron configuration,what is the shape of the complex?

Accepted Answer

A)  octahedral
B)  square pyramid
C)  tetrahedral
D)  trigonal pyramid
E)  square planarF) A) and B)
G) A) and C)

Question 15

Chromium and manganese are among the transition elements that form several different oxides.Which of the following statements characterize these oxides?

Accepted Answer

A)  As the oxidation number on the metal increases,the valence-state electronegativity increases and the oxides change from acidic to basic.
B)  As the oxidation number on the metal increases,the valence-state electronegativity increases and the oxides change from basic to acidic.
C)  As the oxidation number on the metal increases,the valence-state electronegativity decreases and the oxides change from acidic to basic.
D)  As the oxidation number on the metal increases,the valence-state electronegativity decreases and the oxides change from basic to acidic.
E)  None of these statements is correct.F) B) and E)
G) A) and E)

Question 16

Of the 3d transition series of elements,zinc has the greatest atomic radius.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following will be diamagnetic?

Accepted Answer

A)  Ni2+
B)  Cr2+
C)  Mn2+
D)  Co3+
E)  Ti4+F) C) and E)
G) B) and D)

Question 18

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

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) A) and E)
G) B) and E)

Question 19

Give the systematic name for Cr(CO) 3(NH3) 3.

Accepted Answer

A)  chromiumtriaminotricarbonyl
B)  triamminechromium carbonate
C)  triamminetricarbonylchromate(0) 
D)  triamminetricarbonylchromium(0) 
E)  None of these choices is correct.F) B) and D)
G) B) and E)

Question 20

A characteristic of ligands is that

Accepted Answer

A)  they are Lewis acids.
B)  they are Lewis bases.
C)  they are ions.
D)  they are electron pair acceptors.
E)  they are Brønsted-Lowry acids.F) A) and E)
G) A) and B)

Exam 22: The Transition Elements and Their Coordination Compounds

Which of the following ions is most likely to form colored compounds?

Correct Answer
verified

Correct Answer
verified
a.The energy needed for a photon to exci...
View Answer

A characteristic of ligands is that

Correct Answer
verified

A certain transition element has the stable oxidation states of +2,+3,+5,and +6.In which state will the element be most likely to form an ionic bond with chlorine?

Correct Answer
verified

The ground state electron configuration of Zn²⁺ is:

Correct Answer
verified

Which of the following octahedral complexes should have the largest crystal field splitting energy, $\Delta$ ?

Correct Answer
verified

Which of the following will be diamagnetic?

Correct Answer
verified

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

Correct Answer
verified

Give the systematic name for Cr(CO) ₃(NH₃) ₃.

Correct Answer
verified

a.State the requirement for two molecules to be optical isomers. b.A complex ion MABCD²⁺ (where A,B,C and D are different unidentate ligands)rotates the plane of polarized light.Deduce the geometry of the complex and draw the optical isomers of this ionic formula.

Correct Answer
verified
a.The molecules must be non-su...
View Answer

The M²⁺ ions of the first transition series of elements all have the general electronic configuration [Ar]4s²3d^x,where x is an integer from 1 to 8.

Correct Answer
verified

Which of the following ligands could participate in linkage isomerism?

Correct Answer
verified

According to Valence Bond theory,in the square planar Ni(CN) ₄^2- complex ion,the orbital hybridization pattern is

Correct Answer
verified

The d_xy and the orbitals d_x²- _y² both lie in the xy plane,yet for a metal ion in an octahedral complex the energy of the d_xy orbital is lower than that of the d_x²- _y² orbital.Explain this using the arguments of crystal field theory.

Correct Answer
verified
The d_xy orbital lobes are directed between...
View Answer

Chromium and manganese are among the transition elements that form several different oxides.Which of the following statements characterize these oxides?

Correct Answer
verified

Which of the following ions is least likely to form colored compounds?

Correct Answer
verified

A certain transition metal complex has the formula MX₄²⁺.If the metal ion has a d⁸ electron configuration,what is the shape of the complex?

Correct Answer
verified

Square planar complexes can exhibit both geometric and optical isomerism.

Correct Answer
verified

Consider the following structures (1 and 2 are octahedral;3 and 4 are square planar) . Which one of the following statements about the above structures is correct?

Correct Answer
verified

Of the 3d transition series of elements,zinc has the greatest atomic radius.

Correct Answer
verified

Exam 22: The Transition Elements and Their Coordination Compounds

Which of the following ions is most likely to form colored compounds?

Correct AnswerverifiedShow Answer

Correct Answerverifieda.The energy needed for a photon to exci...View AnswerShow Answer

A characteristic of ligands is that

Correct AnswerverifiedShow Answer

A certain transition element has the stable oxidation states of +2,+3,+5,and +6.In which state will the element be most likely to form an ionic bond with chlorine?

Correct AnswerverifiedShow Answer

The ground state electron configuration of Zn2+ is:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following will be diamagnetic?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Give the systematic name for Cr(CO) 3(NH3) 3.

Correct AnswerverifiedShow Answer

a.State the requirement for two molecules to be optical isomers. b.A complex ion MABCD2+ (where A,B,C and D are different unidentate ligands)rotates the plane of polarized light.Deduce the geometry of the complex and draw the optical isomers of this ionic formula.

Correct Answerverifieda.The molecules must be non-su...View AnswerShow Answer

The M2+ ions of the first transition series of elements all have the general electronic configuration [Ar]4s23dx,where x is an integer from 1 to 8.

Correct AnswerverifiedShow Answer

Which of the following ligands could participate in linkage isomerism?

Correct AnswerverifiedShow Answer

According to Valence Bond theory,in the square planar Ni(CN) 42- complex ion,the orbital hybridization pattern is

Correct AnswerverifiedShow Answer

The dxy and the orbitals dx2 - y2 both lie in the xy plane,yet for a metal ion in an octahedral complex the energy of the dxy orbital is lower than that of the dx2 - y2 orbital.Explain this using the arguments of crystal field theory.

Correct AnswerverifiedThe dxy orbital lobes are directed between...View AnswerShow Answer

Chromium and manganese are among the transition elements that form several different oxides.Which of the following statements characterize these oxides?

Correct AnswerverifiedShow Answer

Which of the following ions is least likely to form colored compounds?

Correct AnswerverifiedShow Answer

A certain transition metal complex has the formula MX42+.If the metal ion has a d8 electron configuration,what is the shape of the complex?

Correct AnswerverifiedShow Answer

Square planar complexes can exhibit both geometric and optical isomerism.

Correct AnswerverifiedShow Answer

Consider the following structures (1 and 2 are octahedral;3 and 4 are square planar) . Which one of the following statements about the above structures is correct?

Correct AnswerverifiedShow Answer

Of the 3d transition series of elements,zinc has the greatest atomic radius.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
a.The energy needed for a photon to exci...
View Answer

Correct Answer
verified

Correct Answer
verified

The ground state electron configuration of Zn²⁺ is:

Correct Answer
verified

Which of the following octahedral complexes should have the largest crystal field splitting energy, $\Delta$ ?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Give the systematic name for Cr(CO) ₃(NH₃) ₃.

Correct Answer
verified

a.State the requirement for two molecules to be optical isomers. b.A complex ion MABCD²⁺ (where A,B,C and D are different unidentate ligands)rotates the plane of polarized light.Deduce the geometry of the complex and draw the optical isomers of this ionic formula.

Correct Answer
verified
a.The molecules must be non-su...
View Answer

The M²⁺ ions of the first transition series of elements all have the general electronic configuration [Ar]4s²3d^x,where x is an integer from 1 to 8.

Correct Answer
verified

Correct Answer
verified

According to Valence Bond theory,in the square planar Ni(CN) ₄^2- complex ion,the orbital hybridization pattern is

Correct Answer
verified

The d_xy and the orbitals d_x²- _y² both lie in the xy plane,yet for a metal ion in an octahedral complex the energy of the d_xy orbital is lower than that of the d_x²- _y² orbital.Explain this using the arguments of crystal field theory.

Correct Answer
verified
The d_xy orbital lobes are directed between...
View Answer

Correct Answer
verified

Correct Answer
verified

A certain transition metal complex has the formula MX₄²⁺.If the metal ion has a d⁸ electron configuration,what is the shape of the complex?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified