Question 1

Choose the compound below that contains at least one polar covalent bond but is nonpolar.

Accepted Answer

A)  HCN
B)  CF4
C)  SeBr4
D)  ICl3E) A) and B)
F) A) and C)

Question 2

Draw a molecular orbital diagram and use it to determine which of the following is paramagnetic.

Accepted Answer

A)  B22+
B)  B22-
C)  N22+
D)  C22-
E)  B2F) A) and E)
G) A) and D)

Question 3

Give the approximate bond angle for a molecule with a tetrahedral shape.

Accepted Answer

A)  109.5°
B)  180°
C)  120°
D)  105°
E)  90°F) A) and B)
G) B) and D)

Question 4

Determine the electron geometry (eg) and molecular geometry (mg) of ICl2-.

Accepted Answer

A)  eg = tetrahedral,mg = bent
B)  eg = tetrahedral,mg = trigonal pyramidal
C)  eg = trigonal bipyramidal,mg = linear
D)  eg = trigonal bipyramidal,mg = trigonal planar
E)  eg = octahedral,mg = linearF) C) and D)
G) B) and E)

Question 5

Determine the electron geometry (eg) and molecular geometry (mg) of NCl3.

Accepted Answer

A)  eg = tetrahedral,mg = tetrahedral
B)  eg = linear,mg = trigonal planar
C)  eg = trigonal planar,mg = bent
D)  eg = linear,mg = linear
E)  eg = tetrahedral,mg = trigonal pyramidalF) B) and D)
G) A) and D)

Question 6

Using the VSEPR model,the electron-domain geometry of the central atom in H2O  is ________.

Accepted Answer

A)  linear
B)  trigonal planar
C)  tetrahedral
D)  trigonal bipyramidal
E)  octahedralF) A) and B)
G) B) and E)

Question 7

Draw the Lewis structure for BrO4-.What is the hybridization on the Br atom?

Accepted Answer

A)  sp
B)  sp3d2
C)  sp3d
D)  sp3
E)  sp2F) B) and D)
G) A) and D)

Question 8

Using the VSEPR model,the molecular geometry of the central atom in XeF2 is ________.

Accepted Answer

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

Question 9

Give the approximate bond angle for a molecule with tetrahedral electron geometry and bent molecular geometry.

Accepted Answer

A)  180°
B)  
C)  
D)  109.5°
E)  <120°F) A) and B)
G) A) and C)

Question 10

Use the molecular orbital diagram shown to determine which of the following is most stable. 2 B) F22+ C) Ne22+ D) O22+ E) F22-" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  F2
B)  F22+
C)  Ne22+
D)  O22+
E)  F22-F) A) and D)
G) C) and D)

Question 11

What is the molecular geometry of NCl3?

Accepted Answer

A)  T-shaped
B)  tetrahedral
C)  trigonal planar
D)  trigonal pyramidalE) All of the above
F) A) and B)

Question 12

Draw the Lewis structure for BrF5.What is the hybridization on the Br atom?

Accepted Answer

A)  sp3d2
B)  sp3d
C)  sp3
D)  sp2
E)  spF) All of the above
G) C) and E)

Question 13

Determine the electron geometry for the molecule BrF3.

Accepted Answer

A)  Linear
B)  Trigonal planar
C)  Tetrahedral
D)  Trigonal bipyramidal
E)  OctahedralF) A) and B)
G) C) and E)

Question 14

List the number of sigma bonds and pi bonds in a single bond.

Accepted Answer

A)  1 sigma,0 pi
B)  0 sigma,1 pi
C)  1 sigma,1 pi
D)  1 sigma,2 piE) A) and B)
F) A) and C)

Question 15

What is the molecular geometry of SF5-?

Accepted Answer

A)  octahedral
B)  seesaw
C)  square pyramidal
D)  trigonal bipyramidalE) A) and C)
F) A) and D)

Question 16

Draw the Lewis structure for BF3.What is the hybridization on the B atom?

Accepted Answer

A)  sp
B)  sp3d2
C)  sp3d
D)  sp3
E)  sp2F) A) and D)
G) C) and D)

Question 17

Draw the Lewis structure for SO3.What is the hybridization on the S atom?

Accepted Answer

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

Question 18

Draw the Lewis structure for BrCl3.What is the hybridization on the Br atom?

Accepted Answer

A)  sp3d2
B)  sp3d
C)  sp3
D)  sp2
E)  spF) A) and B)
G) A) and C)

Question 19

How many of the following molecules have sp3 hybridization on the central atom? 
XeCl4  \quad CH4  \quad SF4  \quad C2H2

Accepted Answer

A)  0
B)  4
C)  3
D)  2
E)  1 F) A) and E)
G) A) and B)

Question 20

Determine the electron geometry (eg) and molecular geometry (mg) of PF5.

Accepted Answer

A)  eg = trigonal bipyramidal,mg = trigonal bipyramidal
B)  eg = octahedral,mg = octahedral
C)  eg = trigonal bipyramidal,mg = tetrahedral
D)  eg = tetrahedral,mg = trigonal pyramidal
E)  eg = trigonal planar,mg = octahedralF) A) and B)
G) A) and C)

Exam 10: Chemical Bonding II: Molecular Shapes, valence Bond Theory, and Molecular Orbital Theory

Using the VSEPR model,the electron-domain geometry of the central atom in H2O is ________.

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Draw the Lewis structure for BrCl3.What is the hybridization on the Br atom?

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Determine the electron geometry for the molecule BrF3.

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Determine the electron geometry (eg) and molecular geometry (mg) of PF5.

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Give the approximate bond angle for a molecule with tetrahedral electron geometry and bent molecular geometry.

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Draw the Lewis structure for SO3.What is the hybridization on the S atom?

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Draw the Lewis structure for BrO4-.What is the hybridization on the Br atom?

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Use the molecular orbital diagram shown to determine which of the following is most stable.

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Draw the Lewis structure for BrF5.What is the hybridization on the Br atom?

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Give the approximate bond angle for a molecule with a tetrahedral shape.

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What is the molecular geometry of NCl3?

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What is the molecular geometry of SF5-?

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Determine the electron geometry (eg) and molecular geometry (mg) of NCl3.

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Draw a molecular orbital diagram and use it to determine which of the following is paramagnetic.

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How many of the following molecules have sp3 hybridization on the central atom? XeCl4 \quad CH4 \quad SF4 \quad C2H2

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Using the VSEPR model,the molecular geometry of the central atom in XeF2 is ________.

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Draw the Lewis structure for BF3.What is the hybridization on the B atom?

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Determine the electron geometry (eg) and molecular geometry (mg) of ICl2-.

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List the number of sigma bonds and pi bonds in a single bond.

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Choose the compound below that contains at least one polar covalent bond but is nonpolar.

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Using the VSEPR model,the electron-domain geometry of the central atom in H₂O is ________.

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Draw the Lewis structure for BrCl₃.What is the hybridization on the Br atom?

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Determine the electron geometry for the molecule BrF₃.

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Determine the electron geometry (eg) and molecular geometry (mg) of PF₅.

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Draw the Lewis structure for SO₃.What is the hybridization on the S atom?

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Draw the Lewis structure for BrO₄^-.What is the hybridization on the Br atom?

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Draw the Lewis structure for BrF₅.What is the hybridization on the Br atom?

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What is the molecular geometry of NCl₃?

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What is the molecular geometry of SF₅^-?

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Determine the electron geometry (eg) and molecular geometry (mg) of NCl₃.

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How many of the following molecules have sp³ hybridization on the central atom? XeCl₄ $\quad$ CH₄ $\quad$ SF₄ $\quad$ C₂H₂

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Using the VSEPR model,the molecular geometry of the central atom in XeF₂ is ________.

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Draw the Lewis structure for BF₃.What is the hybridization on the B atom?

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Determine the electron geometry (eg) and molecular geometry (mg) of ICl₂^-.

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