Question 1

Using the VSEPR model, what is the predicted molecular geometry of the PCl3 molecule?

Accepted Answer

A)  linear
B)  bent
C)  trigonal planar
D)  trigonal pyramidal
E)  tetrahedralF) A) and B)
G) A) and C) D

Question 2

In which of the following compounds will the molecules not form hydrogen bonds with each other?

Accepted Answer

A)   
B)   
C)   
D)   E) None of the above
F) A) and C)

Question 3

Place the following in order of decreasing electronegativity. Mg Cl F

Accepted Answer

A)  Mg > Cl > F
B)  F > Cl > Mg
C)  Cl > F > Mg
D)  Cl > Mg > F
E)  F > Mg > ClF) B) and D)
G) D) and E)

Question 4

According to the VSEPR model, the predicted molecular geometry of ammonia, NH3, is

Accepted Answer

A)  linear.
B)  trigonal planar.
C)  bent.
D)  tetrahedral.
E)  trigonal pyramidal.F) B) and E)
G) All of the above

Question 5

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

Question 6

Predict the molecular geometry and polarity of the SO2 molecule.

Accepted Answer

A)  linear, polar
B)  linear, nonpolar
C)  bent, polar
D)  bent, nonpolar
E)  trigonal planar, polarF) A) and B)
G) A) and C)

Question 7

Octane is a component of fuel used in internal combustion engines.The dominant intermolecular forces in octane are

Accepted Answer

A)  dipole-dipole forces.
B)  London dispersion forces.
C)  hydrogen bonding.
D)  covalent bonds.
E)  carbon-hydrogen bonds.F) A) and B)
G) D) and E)

Question 8

Which kinds of intermolecular forces exist between propane molecules? I.dispersion forces
II) dipole-dipole interactions
Ion-dipole interactions

Accepted Answer

A)  I only
B)  II only
C)  III only
D)  I, II, and III
E)  I and IIIF) A) and B)
G) C) and E)

Question 9

Which one of the following molecules is nonpolar?

Accepted Answer

A)  NH3
B)  OF2
C)  CH3Cl
D)  H2O
E)  BeCl2F) A) and B)
G) A) and C)

Question 10

The strongest intermolecular interactions between pentane (C5H12)  molecules arise from

Accepted Answer

A)  dipole-dipole forces.
B)  London dispersion forces.
C)  hydrogen bonding.
D)  ion-dipole interactions.
E)  carbon-carbon bonds.F) C) and E)
G) B) and D)

Question 11

Which of the following is defined as the attractive forces between polar molecules? I.dispersion forces
II) dipole-dipole interactions
Ion-dipole interactions

Accepted Answer

A)  I and III
B)  II only
C)  III only
D)  I, II, and III
E)  I onlyF) C) and D)
G) C) and E) B

Question 12

How many lone pairs of electrons need to be added to complete this Lewis structure?

Accepted Answer

A)  5
B)  8
C)  6
D)  1
E)  16F) C) and D)
G) A) and E)

Question 13

Which of the following pure substances has the strongest dispersion forces?

Accepted Answer

A)  C4H10
B)  C5H12
C)  C6H14
D)  C7H16
E)  C8H18F) B) and C)
G) A) and D)

Question 14

Place the following in order of increasing electronegativity. Se K Cl

Accepted Answer

A)  Cl 
B)  K 
C)  K 
D)  Se 
E)  Cl < K < SeF) C) and D)
G) None of the above

Question 15

Place the following in order of increasing electronegativity. Cs O S

Accepted Answer

A)  O 
B)  S 
C)  Cs 
D)  Cs 
E)  O < Cs < SF) B) and E)
G) C) and D)

Question 16

Which one of the following pure substances will exhibit hydrogen bonding?

Accepted Answer

A)  CH4
B)  H2C=CH2
C)  H2O
D)  CHCl3
E)  CHF3F) C) and E)
G) None of the above

Question 17

The number of resonance structures for the nitrate ion that satisfy the octet rule is

Accepted Answer

A)  1.
B)  2.
C)  3.
D)  4.
E)  none of theseF) D) and E)
G) A) and D)

Question 18

According to the VSEPR model, the predicted molecular geometry of SiCl4 is

Accepted Answer

A)  linear.
B)  trigonal planar.
C)  bent.
D)  tetrahedral.
E)  trigonal pyramidal.F) B) and D)
G) A) and D)

Question 19

What is the molecular geometry of N2O as predicted by the VSEPR model? 2O as predicted by the VSEPR model?   A) trigonal pyramidal B) trigonal planar C) tetrahedral D) bent E) linear" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  trigonal pyramidal
B)  trigonal planar
C)  tetrahedral
D)  bent
E)  linearF) B) and E)
G) B) and D)

Question 20

Which one of the following pure substance has both dispersion forces and dipole-dipole forces?

Accepted Answer

A)  HCl
B)  BCl3
C)  Br2
D)  H2
E)  CO2F) A) and B)
G) A) and C) A

Exam 6: Molecular Shape

Using the VSEPR model, what is the predicted molecular geometry of the PCl3 molecule?

Correct AnswerverifiedD

In which of the following compounds will the molecules not form hydrogen bonds with each other?

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Place the following in order of decreasing electronegativity. Mg Cl F

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According to the VSEPR model, the predicted molecular geometry of ammonia, NH3, is

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

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Predict the molecular geometry and polarity of the SO2 molecule.

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Octane is a component of fuel used in internal combustion engines.The dominant intermolecular forces in octane are

Correct AnswerverifiedShow Answer

Which kinds of intermolecular forces exist between propane molecules? I.dispersion forces II) dipole-dipole interactions Ion-dipole interactions

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Which one of the following molecules is nonpolar?

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The strongest intermolecular interactions between pentane (C5H12) molecules arise from

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Which of the following is defined as the attractive forces between polar molecules? I.dispersion forces II) dipole-dipole interactions Ion-dipole interactions

Correct AnswerverifiedB

How many lone pairs of electrons need to be added to complete this Lewis structure?

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Which of the following pure substances has the strongest dispersion forces?

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Place the following in order of increasing electronegativity. Se K Cl

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Place the following in order of increasing electronegativity. Cs O S

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Which one of the following pure substances will exhibit hydrogen bonding?

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The number of resonance structures for the nitrate ion that satisfy the octet rule is

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According to the VSEPR model, the predicted molecular geometry of SiCl4 is

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What is the molecular geometry of N2O as predicted by the VSEPR model?

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Which one of the following pure substance has both dispersion forces and dipole-dipole forces?

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Using the VSEPR model, what is the predicted molecular geometry of the PCl₃ molecule?

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D

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According to the VSEPR model, the predicted molecular geometry of ammonia, NH₃, is

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

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Predict the molecular geometry and polarity of the SO₂ molecule.

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The strongest intermolecular interactions between pentane (C₅H₁₂) molecules arise from

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B

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According to the VSEPR model, the predicted molecular geometry of SiCl₄ is

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What is the molecular geometry of N₂O as predicted by the VSEPR model?

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A