Question 1

Which of the following diagrams shows the correct orientation of the dipole in sulfur dioxide?

Accepted Answer

A)   
B)   
C)   
D)   
E)  none of theseF) A) and E)
G) B) and D)

Question 2

Which of the following compounds has the same molecular shape as CCl3H?

Accepted Answer

A)  SF4
B)  KrF4
C)  SiF4
D)  C2H4
E)  C2H2F) A) and E)
G) A) and D)

Question 3

Identify the molecular structure of the molecular anion,SF5-,and the hybridization of the S atomic orbitals.

Accepted Answer

Molecular geometry is square pyramidal and hybridization is sp³d².

Question 4

What is the hybridization of arsenic in AsCl3?

Accepted Answer

A)  sp2
B)  sp3
C)  sp3d
D)  sp
E)  sp3d 2F) A) and B)
G) C) and D)

Question 5

What is the valence electron molecular orbital electron configuration of F2?

Accepted Answer

A)  (  σ\sigmaσ 2s) 2(  σ\sigmaσ *2s) 2( π\piπ 2p) 4(  σ\sigmaσ 2p) 2(  σ\sigmaσ *2p) 2( π\piπ *2p) 2
B)  (  σ\sigmaσ 2s) 2 ( π\piπ 2p) 4(  σ\sigmaσ *2s) 2(  σ\sigmaσ 2p) 2( π\piπ *2p) 2(  σ\sigmaσ *2p) 2
C)  (  σ\sigmaσ 2s) 2 ( π\piπ 2p) 4(  σ\sigmaσ 2p) 2(  σ\sigmaσ *2p) 2( π\piπ *2p) 2(  σ\sigmaσ *2s) 2
D)  (  σ\sigmaσ 2s) 2(  σ\sigmaσ *2s) 2(  σ\sigmaσ 2p) 2( π\piπ 2p) 4( π\piπ *2p) 2(  σ\sigmaσ *2p) 2
E)  ( σ\sigmaσ 2s) 2(  σ\sigmaσ *2s) 2(  σ\sigmaσ 2p) 2( π\piπ 2p) 4( π\piπ *2p) 4 F) C) and D)
G) D) and E)

Question 6

Identify the hybridization of atomic orbitals for atoms N1,N2,C1,C2,and C3 in caffeine,which is shown below.Explain why you think this molecule is planar or nonplanar.

Accepted Answer

N1 is sp²,N2 is sp³,C1is sp³,and C2 and C3are sp² hybridized.The molecule is nonplanar because three of the nitrogens have a tetrahedral electron geometry and a trigonal pyramidal local molecular geometry.

Question 7

Ethanol has the formula CH3CH2OH.The central 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) A) and B)
G) C) and D)

Question 8

Use MO theory to predict the bond orders of the following molecular ions.Which one is the most stable?

Accepted Answer

A)  BN+
B)  BC+
C)  CN-
D)  NF-
E)  OF+F) B) and C)
G) B) and E)

Question 9

What is the geometry of the triiodide ion (I3-) ?

Accepted Answer

A)  linear
B)  bent
C)  tetrahedral
D)  trigonal pyramidal
E)  trigonal planarF) B) and C)
G) A) and B)

Question 10

What is the hybridization of the iodine atom in ICl3?

Accepted Answer

A)  sp2
B)  sp3d
C)  sp3d 2
D)  sp3
E)  spF) All of the above
G) A) and E)

Question 11

In which one of the following are the  π\piπ  bond electrons not delocalized in a conjugated system that extends over multiple atoms?

Accepted Answer

A)   
B)   
C)   
D)   
E)    F) A) and C)
G) A) and D)

Question 12

Which of the following molecules contains an atom that is sp2 hybridized?

Accepted Answer

A)  HC-CH
B)  H3C-CH3
C)  H3C-CHO
D)  H3C-OH
E)  H3C-O-CH3F) D) and E)
G) B) and D)

Question 13

The correct H - N - H bond angle in NH3 is _____________

Accepted Answer

A)  the same as the H - O - H angle in water.
B)  exactly 109.5 ∘\circ∘ .
C)  greater than 109.5 ∘\circ∘ .
D)  less than 109.5 ∘\circ∘ .
E)  120 ∘\circ∘ . F) D) and E)
G) A) and D)

Question 14

What is the hybridization of carbon in COCl2?

Accepted Answer

A)  sp2
B)  sp3
C)  sp3d
D)  sp
E)  sp3d 2F) A) and B)
G) D) and E)

Question 15

Which of the following shows the orientation of the net dipole for OCS?

Accepted Answer

A)   
B)   
C)   
D)   
E)  none of theseF) B) and C)
G) A) and C)

Question 16

Oxygen has two common molecular anions: peroxide (O22-) and superoxide (O2-) .Use the MO energy level diagram below to identify which one of the following statements is NOT correct. 
22-) and superoxide (O2-) .Use the MO energy level diagram below to identify which one of the following statements is NOT correct.    A) The bond order of the peroxide is 1. B) The superoxide has a shorter bond than the peroxide. C) Like O2,the peroxide is paramagnetic. D) The superoxide has a stronger bond than the peroxide. E) Oxygen,O2,has a stronger bond than either of these oxides." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  The bond order of the peroxide is 1.
B)  The superoxide has a shorter bond than the peroxide.
C)  Like O2,the peroxide is paramagnetic.
D)  The superoxide has a stronger bond than the peroxide.
E)  Oxygen,O2,has a stronger bond than either of these oxides.F) B) and D)
G) A) and C)

Question 17

Carbonyl dihalides (COX2 with X = I,Cl,or Br)are irritants and can cause blistering of tissue.Their reactivity with tissue is influenced by their polarity.Place these compounds in order of decreasing polarity and explain your reasoning.H,Cl,Br,and I have electronegativity values of 2.1,3.0,2.8,and 2.5,respectively.

Accepted Answer

CH₂O is polar with the O negative.The add...

Question 18

Which of the following has a central atom with the same hybridization as the carbon in formaldehyde (H2CO) ?

Accepted Answer

A)  SO2
B)  OCS
C)  ICl3
D)  I3-
E)  C2H2F) All of the above
G) C) and D) A

Question 19

Use the 1s orbital of hydrogen to form atomic orbitals for H2 and draw the molecular orbital energy level diagram.Label the energy levels with the MO symbols.Which of the following species of hydrogen would you predict to be stable based on your energy-level diagram? Explain.
H22+,H2+,H2,H2-,H22-

Accepted Answer

*____________

____________ Bond order...

Question 20

Both cyclohexane (C6H12) and benzene (C6H6) have the carbon atoms forming a six-member ring.In a valence bond picture of the C - C bonds,___________ hybrid orbitals would overlap for cyclohexane,and ___________ hybrid orbitals would overlap for benzene.

Accepted Answer

A)  sp; sp
B)  sp; sp2
C)  sp2; sp3
D)  sp3; sp2
E)  sp3; spF) A) and C)
G) B) and E)

Exam 5: Bonding Theories-Explaining Molecular Geometry

Which of the following diagrams shows the correct orientation of the dipole in sulfur dioxide?

Correct Answer
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Which of the following compounds has the same molecular shape as CCl₃H?

Correct Answer
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Identify the molecular structure of the molecular anion,SF₅^-,and the hybridization of the S atomic orbitals.

Correct Answer
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Molecular geometry is square pyramidal and hybridization is sp³d².

What is the hybridization of arsenic in AsCl₃?

Correct Answer
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What is the valence electron molecular orbital electron configuration of F₂?

Correct Answer
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Identify the hybridization of atomic orbitals for atoms N1,N2,C1,C2,and C3 in caffeine,which is shown below.Explain why you think this molecule is planar or nonplanar.

Correct Answer
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N1 is sp²,N2 is sp³,C1is sp³,and C2 and C3are sp² hybridized.The molecule is nonplanar because three of the nitrogens have a tetrahedral electron geometry and a trigonal pyramidal local molecular geometry.

Ethanol has the formula CH₃CH₂OH.The central carbon atom has a _local molecular geometry and_ hybridization.

Correct Answer
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Use MO theory to predict the bond orders of the following molecular ions.Which one is the most stable?

Correct Answer
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What is the geometry of the triiodide ion (I₃^-) ?

Correct Answer
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What is the hybridization of the iodine atom in ICl₃?

Correct Answer
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In which one of the following are the $\pi$ bond electrons not delocalized in a conjugated system that extends over multiple atoms?

Correct Answer
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Which of the following molecules contains an atom that is sp² hybridized?

Correct Answer
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The correct H - N - H bond angle in NH₃ is _____________

Correct Answer
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What is the hybridization of carbon in COCl₂?

Correct Answer
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Which of the following shows the orientation of the net dipole for OCS?

Correct Answer
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Oxygen has two common molecular anions: peroxide (O₂²^-) and superoxide (O₂^-) .Use the MO energy level diagram below to identify which one of the following statements is NOT correct.

Correct Answer
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CH₂O is polar with the O negative.The add...
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Which of the following has a central atom with the same hybridization as the carbon in formaldehyde (H₂CO) ?

Correct Answer
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A

Correct Answer
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* Bond order...
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Both cyclohexane (C₆H₁₂) and benzene (C₆H₆) have the carbon atoms forming a six-member ring.In a valence bond picture of the C - C bonds,_ hybrid orbitals would overlap for cyclohexane,and _ hybrid orbitals would overlap for benzene.

Correct Answer
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Exam 5: Bonding Theories-Explaining Molecular Geometry

Which of the following diagrams shows the correct orientation of the dipole in sulfur dioxide?

Correct AnswerverifiedShow Answer

Which of the following compounds has the same molecular shape as CCl3H?

Correct AnswerverifiedShow Answer

Identify the molecular structure of the molecular anion,SF5-,and the hybridization of the S atomic orbitals.

Correct AnswerverifiedMolecular geometry is square pyramidal and hybridization is sp3d2.

What is the hybridization of arsenic in AsCl3?

Correct AnswerverifiedShow Answer

What is the valence electron molecular orbital electron configuration of F2?

Correct AnswerverifiedShow Answer

Identify the hybridization of atomic orbitals for atoms N1,N2,C1,C2,and C3 in caffeine,which is shown below.Explain why you think this molecule is planar or nonplanar.

Correct AnswerverifiedN1 is sp2,N2 is sp3,C1is sp3,and C2 and C3are sp2 hybridized.The molecule is nonplanar because three of the nitrogens have a tetrahedral electron geometry and a trigonal pyramidal local molecular geometry.

Ethanol has the formula CH3CH2OH.The central carbon atom has a ___________local molecular geometry and___________ hybridization.

Correct AnswerverifiedShow Answer

Use MO theory to predict the bond orders of the following molecular ions.Which one is the most stable?

Correct AnswerverifiedShow Answer

What is the geometry of the triiodide ion (I3-) ?

Correct AnswerverifiedShow Answer

What is the hybridization of the iodine atom in ICl3?

Correct AnswerverifiedShow Answer

In which one of the following are the π\piπ bond electrons not delocalized in a conjugated system that extends over multiple atoms?

Correct AnswerverifiedShow Answer

Which of the following molecules contains an atom that is sp2 hybridized?

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The correct H - N - H bond angle in NH3 is _____________

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What is the hybridization of carbon in COCl2?

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Which of the following shows the orientation of the net dipole for OCS?

Correct AnswerverifiedShow Answer

Oxygen has two common molecular anions: peroxide (O22-) and superoxide (O2-) .Use the MO energy level diagram below to identify which one of the following statements is NOT correct.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedCH2O is polar with the O negative.The add...View AnswerShow Answer

Which of the following has a central atom with the same hybridization as the carbon in formaldehyde (H2CO) ?

Correct AnswerverifiedA

Use the 1s orbital of hydrogen to form atomic orbitals for H2 and draw the molecular orbital energy level diagram.Label the energy levels with the MO symbols.Which of the following species of hydrogen would you predict to be stable based on your energy-level diagram? Explain. H22+,H2+,H2,H2-,H22-

Correct Answerverified *____________ ____________ Bond order...View AnswerShow Answer

Both cyclohexane (C6H12) and benzene (C6H6) have the carbon atoms forming a six-member ring.In a valence bond picture of the C - C bonds,___________ hybrid orbitals would overlap for cyclohexane,and ___________ hybrid orbitals would overlap for benzene.

Correct AnswerverifiedShow Answer

Correct Answer
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Which of the following compounds has the same molecular shape as CCl₃H?

Correct Answer
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Identify the molecular structure of the molecular anion,SF₅^-,and the hybridization of the S atomic orbitals.

Correct Answer
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Molecular geometry is square pyramidal and hybridization is sp³d².

What is the hybridization of arsenic in AsCl₃?

Correct Answer
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What is the valence electron molecular orbital electron configuration of F₂?

Correct Answer
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Correct Answer
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N1 is sp²,N2 is sp³,C1is sp³,and C2 and C3are sp² hybridized.The molecule is nonplanar because three of the nitrogens have a tetrahedral electron geometry and a trigonal pyramidal local molecular geometry.

Ethanol has the formula CH₃CH₂OH.The central carbon atom has a _local molecular geometry and_ hybridization.

Correct Answer
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Correct Answer
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What is the geometry of the triiodide ion (I₃^-) ?

Correct Answer
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What is the hybridization of the iodine atom in ICl₃?

Correct Answer
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In which one of the following are the $\pi$ bond electrons not delocalized in a conjugated system that extends over multiple atoms?

Correct Answer
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Which of the following molecules contains an atom that is sp² hybridized?

Correct Answer
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The correct H - N - H bond angle in NH₃ is _____________

Correct Answer
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What is the hybridization of carbon in COCl₂?

Correct Answer
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Correct Answer
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Oxygen has two common molecular anions: peroxide (O₂²^-) and superoxide (O₂^-) .Use the MO energy level diagram below to identify which one of the following statements is NOT correct.

Correct Answer
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Correct Answer
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CH₂O is polar with the O negative.The add...
View Answer

Which of the following has a central atom with the same hybridization as the carbon in formaldehyde (H₂CO) ?

Correct Answer
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A

Correct Answer
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* Bond order...
View Answer

Both cyclohexane (C₆H₁₂) and benzene (C₆H₆) have the carbon atoms forming a six-member ring.In a valence bond picture of the C - C bonds,_ hybrid orbitals would overlap for cyclohexane,and _ hybrid orbitals would overlap for benzene.

Correct Answer
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