Question 1

Which of the following molecules or ions has the same approximate geometry as BCl3?

Accepted Answer

A)  COCl2
B)  ClO3-
C)  ICl3
D)  NCl3
E)  SO32-F) All of the above
G) B) and D)

Question 2

Which one of the following statements is NOT correct about CO,CO+,and CO-? Use the following MO diagram. +,and CO-? Use the following MO diagram.   A) All have at least 6 electrons in bonding MOs. B) CO has the shortest bond. C) All have a permanent dipole. D) CO is paramagnetic. E) Two of these have the same bond order." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  All have at least 6 electrons in bonding MOs.
B)  CO has the shortest bond.
C)  All have a permanent dipole.
D)  CO is paramagnetic.
E)  Two of these have the same bond order.F) C) and D)
G) D) and E)

Question 3

Which of the following contains a carbon atom that is chiral?

Accepted Answer

A)  CH2F2
B)  CHBr3
C)  H2ClC-CH2Br
D)  H3C-CH2F
E)  H3C-CHFClF) A) and C)
G) A) and B)

Question 4

A Lewis structure of aspirin without the nonbonding electrons is shown in the figure below.Taking into account the nonbonding electrons,identify the hybridization of the atomic orbitals for the following atoms: O1,O2,and O3.Identify the bond angles around C1,C2,and O3.

Accepted Answer

O1 is sp³ hybridize...

Question 5

The electron group geometry of AsCl3 is _____________,and its molecular geometry is ______________.

Accepted Answer

A)  trigonal bipyramidal; trigonal bipyramidal
B)  octahedral; trigonal bipyramidal
C)  trigonal bipyramidal; tetrahedral
D)  tetrahedral; trigonal pyramidal
E)  tetrahedral; tetrahedralF) None of the above
G) All of the above

Question 6

Which one of the following statements regarding molecular orbitals for diatomic molecules is not correct?

Accepted Answer

A)  "An atomic orbital on one atom combines with an atomic orbital on the other atom to form two molecular orbitals."
B)  "2p atomic orbitals form only  π\piπ  and  π\piπ * molecular orbitals."
C)  "2s atomic orbitals form only   σ\sigmaσ  and   σ\sigmaσ * atomic orbitals."
D)  "  σ\sigmaσ  orbitals are symmetric with respect to rotation around the internuclear axis;  π\piπ  orbitals do not have this symmetry."
E)  "A bonding molecular orbital describes the buildup of negatively charged electrons between the nuclei." F) D) and E)
G) C) and D)

Question 7

Predict the following three bond angles and give your rationale: N - C - C,O - C  O,and
C - O - H.These bonding patterns appear in amino acids.

Accepted Answer

N - C - C: 109^$\circ$ (steric number of central ...

Question 8

What is the hybridization of Xe in XeOF4,and what is the molecular geometry?

Accepted Answer

A)  sp3d,square pyramidal
B)  sp3d,seesaw
C)  sp3d 2,square pyramidal
D)  sp3d 2,square planar
E)  sp3d 2,octahedralF) D) and E)
G) None of the above

Question 9

Identify the hybridization of the atomic orbitals on carbon atoms labeled 1,2,and 3.The hydrogen atoms and lone pair electrons are not shown in the diagram.

Accepted Answer

C1 is sp³,C...

Question 10

Of the following molecules (O3,SCl2,SO2,CS2,and CO2)which ones do you predict to have a bond angle of 180S1U1P1$\circ$S1S1P0?

Accepted Answer

CS<sub>2</...

Question 11

Describe the valence bond picture of bonding in ethylene,which is shown below.Identify the number of valence electrons,the number of $\pi$ bonds,the number of $\sigma$ bonds,and the hybridization of the carbon atomic orbitals.

Accepted Answer

Ethylene has 12 vale...

Question 12

Use the relative energies of the molecular orbitals given below,which are derived from the n = 5 atomic orbitals,to determine the bond orders in I2,I2+ ,and I2-, and identify the species that is predicted to be the least stable.The valence molecular orbitals in order of increasing energy are  $\sigma$<  $\sigma$* <  $\sigma$ < $\pi$ < $\pi$* < $\sigma$*.

Accepted Answer

The valence electron configuration of I<...

Question 13

Which one of the following molecules has a bond order of 3?

Accepted Answer

A)  Li2
B)  Be2
C)  N2
D)  F2
E)  C2F) A) and E)
G) B) and C)

Question 14

Use energy levels of diatomic molecules derived from molecular orbital theory to predict the bond order of the oxygen molecule O2 and the peroxide anion O22-.

Accepted Answer

A)  oxygen,bond order = 2; peroxide,bond order = 3
B)  oxygen,bond order = 2; peroxide,bond order = 2
C)  oxygen,bond order = 4; peroxide,bond order = 4
D)  oxygen,bond order = 4; peroxide,bond order = 5
E)  oxygen,bond order = 2; peroxide,bond order = 1F) B) and E)
G) A) and B)

Question 15

Ethanol has the formula CH3CH2OH.The end carbon atom has a ___________ local molecular geometry and___________ hybridization.

Accepted Answer

A)  trigonal planar; sp
B)  tetrahedral; sp3
C)  tetrahedral; sp2
D)  seesaw; sp2
E)  seesaw; sp3F) B) and E)
G) C) and D)

Question 16

What are the steric number and molecular geometry of SO2?

Accepted Answer

A)  2,linear
B)  3,trigonal planar
C)  3,trigonal pyramidal
D)  3,bent
E)  4,bentF) B) and E)
G) None of the above

Question 17

Which of the following molecules or ions has a bond order that is less than 1?

Accepted Answer

A)  F2
B)  He2-
C)  Ne22+
D)  N2
E)  O22-F) A) and C)
G) A) and E)

Question 18

Determine the molecular geometry of BF3.

Accepted Answer

A)  bent
B)  trigonal planar
C)  trigonal bipyramidal
D)  tetrahedral
E)  trigonal pyramidalF) B) and D)
G) All of the above

Question 19

Which of the following contains polar bonds and has a permanent dipole moment?

Accepted Answer

A)  PCl3
B)  SiF4
C)  CO2
D)  BeCl2
E)  CS2F) A) and B)
G) A) and C)

Question 20

Which type of molecular orbital contains a node perpendicular to the axis connecting two atomic nuclei?

Accepted Answer

A)  "  σ\sigmaσ "
B)  " π\piπ "
C)  "  σ\sigmaσ *"
D)  "s"
E)  "p" F) None of the above
G) B) and E)

Exam 5: Bonding Theories-Explaining Molecular Geometry

Identify the hybridization of the atomic orbitals on carbon atoms labeled 1,2,and 3.The hydrogen atoms and lone pair electrons are not shown in the diagram.

Correct Answer
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C1 is sp³,C...
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The valence electron configuration of I<...
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Determine the molecular geometry of BF₃.

Correct Answer
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Which one of the following statements regarding molecular orbitals for diatomic molecules is not correct?

Correct Answer
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Use energy levels of diatomic molecules derived from molecular orbital theory to predict the bond order of the oxygen molecule O₂ and the peroxide anion O₂²^-.

Correct Answer
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What is the hybridization of Xe in XeOF₄,and what is the molecular geometry?

Correct Answer
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Which one of the following molecules has a bond order of 3?

Correct Answer
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The electron group geometry of AsCl₃ is _,and its molecular geometry is __.

Correct Answer
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A Lewis structure of aspirin without the nonbonding electrons is shown in the figure below.Taking into account the nonbonding electrons,identify the hybridization of the atomic orbitals for the following atoms: O1,O2,and O3.Identify the bond angles around C1,C2,and O3.

Correct Answer
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O1 is sp³ hybridize...
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Ethanol has the formula CH₃CH₂OH.The end carbon atom has a _ local molecular geometry and_ hybridization.

Correct Answer
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Which of the following molecules or ions has a bond order that is less than 1?

Correct Answer
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Of the following molecules (O₃,SCl₂,SO₂,CS₂,and CO₂)which ones do you predict to have a bond angle of 180^$\circ$?

Correct Answer
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CS_{2View Answer}

Which type of molecular orbital contains a node perpendicular to the axis connecting two atomic nuclei?

Correct Answer
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Which of the following contains polar bonds and has a permanent dipole moment?

Correct Answer
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What are the steric number and molecular geometry of SO₂?

Correct Answer
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Predict the following three bond angles and give your rationale: N - C - C,O - C O,and C - O - H.These bonding patterns appear in amino acids.

Correct Answer
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N - C - C: 109^$\circ$ (steric number of central ...
View Answer

Correct Answer
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Ethylene has 12 vale...
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Which of the following contains a carbon atom that is chiral?

Correct Answer
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Which one of the following statements is NOT correct about CO,CO⁺,and CO^-? Use the following MO diagram.

Correct Answer
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Which of the following molecules or ions has the same approximate geometry as BCl₃?

Correct Answer
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Exam 5: Bonding Theories-Explaining Molecular Geometry

Identify the hybridization of the atomic orbitals on carbon atoms labeled 1,2,and 3.The hydrogen atoms and lone pair electrons are not shown in the diagram.

Correct AnswerverifiedC1 is sp3,C...View AnswerShow Answer

Correct AnswerverifiedThe valence electron configuration of I<...View AnswerShow Answer

Determine the molecular geometry of BF3.

Correct AnswerverifiedShow Answer

Which one of the following statements regarding molecular orbitals for diatomic molecules is not correct?

Correct AnswerverifiedShow Answer

Use energy levels of diatomic molecules derived from molecular orbital theory to predict the bond order of the oxygen molecule O2 and the peroxide anion O22-.

Correct AnswerverifiedShow Answer

What is the hybridization of Xe in XeOF4,and what is the molecular geometry?

Correct AnswerverifiedShow Answer

Which one of the following molecules has a bond order of 3?

Correct AnswerverifiedShow Answer

The electron group geometry of AsCl3 is _____________,and its molecular geometry is ______________.

Correct AnswerverifiedShow Answer

A Lewis structure of aspirin without the nonbonding electrons is shown in the figure below.Taking into account the nonbonding electrons,identify the hybridization of the atomic orbitals for the following atoms: O1,O2,and O3.Identify the bond angles around C1,C2,and O3.

Correct AnswerverifiedO1 is sp3 hybridize...View AnswerShow Answer

Ethanol has the formula CH3CH2OH.The end carbon atom has a ___________ local molecular geometry and___________ hybridization.

Correct AnswerverifiedShow Answer

Which of the following molecules or ions has a bond order that is less than 1?

Correct AnswerverifiedShow Answer

Of the following molecules (O3,SCl2,SO2,CS2,and CO2)which ones do you predict to have a bond angle of 180 ∘\circ∘ ?

Correct AnswerverifiedCS2View AnswerShow Answer

Which type of molecular orbital contains a node perpendicular to the axis connecting two atomic nuclei?

Correct AnswerverifiedShow Answer

Which of the following contains polar bonds and has a permanent dipole moment?

Correct AnswerverifiedShow Answer

What are the steric number and molecular geometry of SO2?

Correct AnswerverifiedShow Answer

Predict the following three bond angles and give your rationale: N - C - C,O - C O,and C - O - H.These bonding patterns appear in amino acids.

Correct Answerverified N - C - C: 109 ∘\circ∘ (steric number of central ...View AnswerShow Answer

Describe the valence bond picture of bonding in ethylene,which is shown below.Identify the number of valence electrons,the number of π\piπ bonds,the number of σ\sigmaσ bonds,and the hybridization of the carbon atomic orbitals.

Correct AnswerverifiedEthylene has 12 vale...View AnswerShow Answer

Which of the following contains a carbon atom that is chiral?

Correct AnswerverifiedShow Answer

Which one of the following statements is NOT correct about CO,CO+,and CO-? Use the following MO diagram.

Correct AnswerverifiedShow Answer

Which of the following molecules or ions has the same approximate geometry as BCl3?

Correct AnswerverifiedShow Answer

Correct Answer
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C1 is sp³,C...
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Correct Answer
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The valence electron configuration of I<...
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Determine the molecular geometry of BF₃.

Correct Answer
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Correct Answer
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Use energy levels of diatomic molecules derived from molecular orbital theory to predict the bond order of the oxygen molecule O₂ and the peroxide anion O₂²^-.

Correct Answer
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What is the hybridization of Xe in XeOF₄,and what is the molecular geometry?

Correct Answer
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Correct Answer
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The electron group geometry of AsCl₃ is _,and its molecular geometry is __.

Correct Answer
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Correct Answer
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O1 is sp³ hybridize...
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Ethanol has the formula CH₃CH₂OH.The end carbon atom has a _ local molecular geometry and_ hybridization.

Correct Answer
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Correct Answer
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Of the following molecules (O₃,SCl₂,SO₂,CS₂,and CO₂)which ones do you predict to have a bond angle of 180^$\circ$?

Correct Answer
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CS_{2View Answer}

Correct Answer
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Correct Answer
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What are the steric number and molecular geometry of SO₂?

Correct Answer
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Correct Answer
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N - C - C: 109^$\circ$ (steric number of central ...
View Answer

Correct Answer
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Ethylene has 12 vale...
View Answer

Correct Answer
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Which one of the following statements is NOT correct about CO,CO⁺,and CO^-? Use the following MO diagram.

Correct Answer
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Which of the following molecules or ions has the same approximate geometry as BCl₃?

Correct Answer
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