Question 1

Valence bond theory predicts that iodine will use ________ hybrid orbitals in ICl2-.

Accepted Answer

A)   sp2
B)   sp3
C)   sp3d
D)   sp3d2
E)   None of these choices is correct.F) C) and E)
G) None of the above

Question 2

Indicate the type of hybrid orbitals used by the central atom in PCl3.

Accepted Answer

A)   sp
B)   sp2
C)   sp3
D)   sp3d
E)   sp3d2F) B) and D)
G) C) and E)

Question 3

The bond angle for an sp hybrid orbital is smaller than the bond angle for an sp2 hybrid orbital.

Accepted Answer

A) True 
 B)False

Question 4

What is the molecular geometry of ClF2- as predicted by the VSEPR model?

Accepted Answer

A)   linear
B)   bent
C)   seesaw
D)   T-shaped
E)   trigonal bipyramidalF) A) and B)
G) All of the above

Question 5

Which of the following molecules has a nonzero dipole moment?

Accepted Answer

A)   BeCl2
B)   SF2
C)   KrF2
D)   CO2
E)   CCl4F) C) and D)
G) All of the above

Question 6

Which of the following is required for the determination of the VSEPR model and the molecular shape?

Accepted Answer

A)   Atomic mass
B)   Number of protons
C)   Oxidation number
D)   Lewis structure
E)   None of the answers is correct.F) A) and B)
G) B) and E)

Question 7

What is the total number of electron domains around the central atom for a molecule having a trigonal pyramidal molecular geometry, such as NH3?

Accepted Answer

A)   5
B)   2
C)   3
D)   4
E)   6F) A) and D)
G) All of the above

Question 8

How many π bonds are there in CH3COCH3?

Accepted Answer

Question 9

Indicate the type of hybrid orbitals used by the central atom in CCl4.

Accepted Answer

A)   sp
B)   sp2
C)   sp3
D)   sp3d
E)   sp3d2F) A) and C)
G) C) and D)

Question 10

Which has a dipole moment of zero?

Accepted Answer

A)   N2O
B)   NF3
C)   H2S
D)   SeO3
E)   CH3ClF) A) and D)
G) None of the above

Question 11

What is the hybridization of the As atom in the AsF5 molecule?

Accepted Answer

A)   sp
B)   sp2
C)   sp3
D)   sp3d
E)   sp3d2F) B) and E)
G) A) and B)

Question 12

When PCl5 solidifies it forms PCl4+cations and PCl6- anions. According to valence bond theory, what hybrid orbitals are used by phosphorus in the PCl4+cation?

Accepted Answer

A)   sp
B)   sp2
C)   sp3
D)   sp3d
E)   sp3d2F) A) and B)
G) B) and C)

Question 13

Which formula is incorrectly matched with its VSEPR model representation? (Note: Lone pairs on the models, if any, are not shown.)

Accepted Answer

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

Question 14

Rank the following molecules in order of increasing dipole moment.

Accepted Answer

A)   III 
B)   III 
C)   I 
D)   I 
E)   II < III < IF) D) and E)
G) A) and B)

Question 15

Using the VSEPR model, predict the molecular geometry around the central atom in PO43-.

Accepted Answer

A)   trigonal planar
B)   trigonal pyramidal
C)   tetrahedral
D)   trigonal bipyramidal
E)   octahedralF) B) and C)
G) None of the above

Question 16

Which is the most reasonable prediction for the Cl-N-Cl bond angle in NCl3?

Accepted Answer

A)   120°
B)   111°
C)   109.5°
D)   107°
E)   90°F) C) and D)
G) A) and E)

Question 17

What is the molecular geometry of BeH2 as predicted by the VSEPR model?

Accepted Answer

A)   tetrahedral
B)   bent
C)   trigonal planar
D)   linear
E)   trigonal pyramidalF) C) and E)
G) B) and C)

Question 18

In which molecule is the central atom sp2 hybridized?

Accepted Answer

A)   SO2
B)   N2O
C)   BeCl2
D)   NF3
E)   PF5F) B) and E)
G) None of the above

Question 19

According to the VSEPR model, the predicted molecular geometry of the SO3 molecule is

Accepted Answer

A)   pyramidal.
B)   tetrahedral.
C)   trigonal planar.
D)   seesaw.
E)   square planar.F) A) and B)
G) A) and E)

Exam 9: Chemical Bonding II: Molecular Geometry and Bonding Theories

What is the total number of electron domains around the central atom for a molecule having a trigonal pyramidal molecular geometry, such as NH₃?

Correct Answer
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Using the VSEPR model, predict the molecular geometry around the central atom in PO₄^3-.

Correct Answer
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Rank the following molecules in order of increasing dipole moment.

Correct Answer
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When PCl₅ solidifies it forms PCl₄⁺cations and PCl₆^-anions. According to valence bond theory, what hybrid orbitals are used by phosphorus in the PCl₄⁺cation?

Correct Answer
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Which formula is incorrectly matched with its VSEPR model representation? (Note: Lone pairs on the models, if any, are not shown.)

Correct Answer
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Which is the most reasonable prediction for the Cl-N-Cl bond angle in NCl₃?

Correct Answer
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Which of the following is required for the determination of the VSEPR model and the molecular shape?

Correct Answer
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Valence bond theory predicts that iodine will use ________ hybrid orbitals in ICl₂^-.

Correct Answer
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What is the hybridization of the As atom in the AsF₅ molecule?

Correct Answer
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According to the VSEPR model, the predicted molecular geometry of the SO₃ molecule is

Correct Answer
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How many π bonds are there in CH₃COCH₃?

Correct Answer
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In which molecule is the central atom sp² hybridized?

Correct Answer
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Which has a dipole moment of zero?

Correct Answer
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Which of the following molecules has a nonzero dipole moment?

Correct Answer
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What is the molecular geometry of BeH₂ as predicted by the VSEPR model?

Correct Answer
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What is the molecular geometry of ClF₂^- as predicted by the VSEPR model?

Correct Answer
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The bond angle for an sp hybrid orbital is smaller than the bond angle for an sp² hybrid orbital.

Correct Answer
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Indicate the type of hybrid orbitals used by the central atom in PCl₃.

Correct Answer
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Indicate the type of hybrid orbitals used by the central atom in CCl₄.

Correct Answer
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Exam 9: Chemical Bonding II: Molecular Geometry and Bonding Theories

What is the total number of electron domains around the central atom for a molecule having a trigonal pyramidal molecular geometry, such as NH3?

Correct AnswerverifiedShow Answer

Using the VSEPR model, predict the molecular geometry around the central atom in PO43-.

Correct AnswerverifiedShow Answer

Rank the following molecules in order of increasing dipole moment.

Correct AnswerverifiedShow Answer

When PCl5 solidifies it forms PCl4+cations and PCl6- anions. According to valence bond theory, what hybrid orbitals are used by phosphorus in the PCl4+cation?

Correct AnswerverifiedShow Answer

Which formula is incorrectly matched with its VSEPR model representation? (Note: Lone pairs on the models, if any, are not shown.)

Correct AnswerverifiedShow Answer

Which is the most reasonable prediction for the Cl-N-Cl bond angle in NCl3?

Correct AnswerverifiedShow Answer

Which of the following is required for the determination of the VSEPR model and the molecular shape?

Correct AnswerverifiedShow Answer

Valence bond theory predicts that iodine will use ________ hybrid orbitals in ICl2-.

Correct AnswerverifiedShow Answer

What is the hybridization of the As atom in the AsF5 molecule?

Correct AnswerverifiedShow Answer

According to the VSEPR model, the predicted molecular geometry of the SO3 molecule is

Correct AnswerverifiedShow Answer

How many π bonds are there in CH3COCH3?

Correct AnswerverifiedShow Answer

In which molecule is the central atom sp2 hybridized?

Correct AnswerverifiedShow Answer

Which has a dipole moment of zero?

Correct AnswerverifiedShow Answer

Which of the following molecules has a nonzero dipole moment?

Correct AnswerverifiedShow Answer

What is the molecular geometry of BeH2 as predicted by the VSEPR model?

Correct AnswerverifiedShow Answer

What is the molecular geometry of ClF2- as predicted by the VSEPR model?

Correct AnswerverifiedShow Answer

The bond angle for an sp hybrid orbital is smaller than the bond angle for an sp2 hybrid orbital.

Correct AnswerverifiedShow Answer

Indicate the type of hybrid orbitals used by the central atom in PCl3.

Correct AnswerverifiedShow Answer

Indicate the type of hybrid orbitals used by the central atom in CCl4.

Correct AnswerverifiedShow Answer

What is the total number of electron domains around the central atom for a molecule having a trigonal pyramidal molecular geometry, such as NH₃?

Correct Answer
verified

Using the VSEPR model, predict the molecular geometry around the central atom in PO₄^3-.

Correct Answer
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Correct Answer
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When PCl₅ solidifies it forms PCl₄⁺cations and PCl₆^-anions. According to valence bond theory, what hybrid orbitals are used by phosphorus in the PCl₄⁺cation?

Correct Answer
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Correct Answer
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Which is the most reasonable prediction for the Cl-N-Cl bond angle in NCl₃?

Correct Answer
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Correct Answer
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Valence bond theory predicts that iodine will use ________ hybrid orbitals in ICl₂^-.

Correct Answer
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What is the hybridization of the As atom in the AsF₅ molecule?

Correct Answer
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According to the VSEPR model, the predicted molecular geometry of the SO₃ molecule is

Correct Answer
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How many π bonds are there in CH₃COCH₃?

Correct Answer
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In which molecule is the central atom sp² hybridized?

Correct Answer
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Correct Answer
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Correct Answer
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What is the molecular geometry of BeH₂ as predicted by the VSEPR model?

Correct Answer
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What is the molecular geometry of ClF₂^- as predicted by the VSEPR model?

Correct Answer
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The bond angle for an sp hybrid orbital is smaller than the bond angle for an sp² hybrid orbital.

Correct Answer
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Indicate the type of hybrid orbitals used by the central atom in PCl₃.

Correct Answer
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Indicate the type of hybrid orbitals used by the central atom in CCl₄.

Correct Answer
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