Question 1

Determine the electron geometry (eg) and molecular geometry (mg) of the underlined carbon in CH3CN.

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 = trigonal planar,mg = trigonal planar

Question 2

Determine the electron geometry (eg) and molecular geometry (mg) of BrF3.

Accepted Answer

A)  eg = trigonal planar,mg = trigonal planar
B)  eg = trigonal bipyramidal,mg = T-shape
C)  eg = trigonal planar,mg = bent
D)  eg = trigonal bipyramidal,mg = see-saw
E)  eg = tetrahedral,mg = trigonal pyramidal

Question 3

Determine the electron geometry (eg) and molecular geometry (mg) of CO32⁻.

Accepted Answer

A)  eg = tetrahedral,mg = tetrahedral
B)  eg = tetrahedral,mg = trigonal pyramidal
C)  eg = trigonal planar,mg = bent
D)  eg = trigonal planar,mg = trigonal planar
E)  eg = tetrahedral,mg = trigonal planar

Question 4

What is the molecular geometry of SBr4?

Accepted Answer

A)  seesaw
B)  square planar
C)  square pyramidal
D)  tetrahedral

Question 5

What is the molecular geometry of SF5-?

Accepted Answer

A)  octahedral
B)  seesaw
C)  square pyramidal
D)  trigonal bipyramidal

Question 6

How many of the following molecules have sp2 hybridization on the central atom?
HCN SO2 OCl2 XeCl2

Accepted Answer

A)  4
B)  3
C)  2
D)  1
E)  0

Question 7

Determine the electron geometry (eg) and molecular geometry (mg) of SiF4.

Accepted Answer

A)  eg = tetrahedral,mg = trigonal pyramidal
B)  eg = octahedral,mg = square planar
C)  eg = trigonal bipyramidal,mg = trigonal pyramidal
D)  eg = tetrahedral,mg = bent
E)  eg = tetrahedral,mg = tetrahedral

Question 8

What is the bond order in He2 molecule?

Accepted Answer

A)  0
B)  1
C)  1/2
D)  2

Question 9

Place the following in order of increasing dipole moment.
I.BCl3 
II.BIF2  
III.BClF2

Accepted Answer

A)  I 
B)  II 
C)  I 
D)  II 
E)  I < III < II

Question 10

Using the VSEPR model,the molecular geometry of the central atom in CF4 is ________.

Accepted Answer

A)  linear
B)  trigonal planar
C)  tetrahedral
D)  bent
E)  trigonal pyramidal

Question 11

Determine the electron geometry (eg) and molecular geometry (mg) of XeF4.

Accepted Answer

A)  eg = tetrahedral,mg = tetrahedral
B)  eg = linear,mg = linear
C)  eg = tetrahedral,mg = bent
D)  eg = trigonal bipyramidal,mg = tetrahedral
E)  eg = octahedral,mg = square planar

Question 12

How many of the following molecules have sp3d hybridization on the central atom?
SiCl4 BrF5 AsF5 BrF3

Accepted Answer

A)  2
B)  0
C)  4
D)  1
E)  3

Question 13

Using the VSEPR model,the molecular geometry of the central atom in BF3 is ________.

Accepted Answer

A)  linear
B)  trigonal planar
C)  tetrahedral
D)  bent
E)  trigonal pyramidal

Question 14

The orbital hybridization on the carbon atoms in C2H2 is ________.

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d2

Question 15

Determine the electron geometry,molecular geometry and polarity of TeCl6.

Accepted Answer

A)  eg = octahedral,mg = octahedral,nonpolar
B)  eg = trigonal bipyramidal,mg = trigonal bipyramidal,nonpolar
C)  eg = octahedral,mg = square planar,polar
D)  eg = trigonal bipyramidal,mg = see-saw,polar
E)  eg = tetrahedral,mg = trigonal pyramidal,polar

Question 16

Using the VSEPR model,the molecular geometry of the central atom in NCl3 is ________.

Accepted Answer

A)  linear
B)  trigonal planar
C)  tetrahedral
D)  bent
E)  trigonal pyramidal

Question 17

Consider the molecule below.Determine the hybridization at each of the three atoms (C,C,N) from left to right 2,2 = sp3,3 =s p2 B) 1 = sp2,2 = sp3,3 = sp3 C) 1 = sp3,2 = sp3,3 = sp3 D) 1 = sp3,2 = sp3,3 = sp2 E) 1 = sp,2 = sp2,3 = sp2" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  1 = sp2,2 = sp3,3 =s p2
B)  1 = sp2,2 = sp3,3 = sp3
C)  1 = sp3,2 = sp3,3 = sp3
D)  1 = sp3,2 = sp3,3 = sp2
E)  1 = sp,2 = sp2,3 = sp2

Question 18

Draw the Lewis structure for BrF4-.What is the hybridization on the Br atom?

Accepted Answer

A)  sp3d2
B)  sp3d
C)  sp3
D)  sp2
E)  sp

Question 19

Consider the molecule below.Determine the hybridization at each of the 2 labeled carbons. 3,C2 = sp3d B) C1 = sp,C2 = sp2 C) C1 = sp2,C2 = sp3d D) C1 = sp3d,C2 = sp3d2 E) C1 = sp2,C2 = sp3" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  C1 = sp3,C2 = sp3d
B)  C1 = sp,C2 = sp2
C)  C1 = sp2,C2 = sp3d
D)  C1 = sp3d,C2 = sp3d2
E)  C1 = sp2,C2 = sp3

Question 20

According to the MO theory,which of the following molecules should not exist?

Accepted Answer

A)  He2+
B)  He2
C)  H2+
D)  All of the above

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

Determine the electron geometry (eg) and molecular geometry (mg) of the underlined carbon in CH3CN.

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The orbital hybridization on the carbon atoms in C2H2 is ________.

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Determine the electron geometry,molecular geometry and polarity of TeCl6.

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Determine the electron geometry (eg) and molecular geometry (mg) of CO32⁻.

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Using the VSEPR model,the molecular geometry of the central atom in NCl3 is ________.

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Using the VSEPR model,the molecular geometry of the central atom in BF3 is ________.

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Determine the electron geometry (eg) and molecular geometry (mg) of BrF3.

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What is the molecular geometry of SBr4?

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Using the VSEPR model,the molecular geometry of the central atom in CF4 is ________.

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Consider the molecule below.Determine the hybridization at each of the three atoms (C,C,N) from left to right

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According to the MO theory,which of the following molecules should not exist?

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Determine the electron geometry (eg) and molecular geometry (mg) of SiF4.

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How many of the following molecules have sp3d hybridization on the central atom? SiCl4 BrF5 AsF5 BrF3

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Consider the molecule below.Determine the hybridization at each of the 2 labeled carbons.

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What is the molecular geometry of SF5-?

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Place the following in order of increasing dipole moment. I.BCl3 II.BIF2 III.BClF2

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Draw the Lewis structure for BrF4-.What is the hybridization on the Br atom?

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How many of the following molecules have sp2 hybridization on the central atom? HCN SO2 OCl2 XeCl2

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What is the bond order in He2 molecule?

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Determine the electron geometry (eg) and molecular geometry (mg) of XeF4.

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Determine the electron geometry (eg) and molecular geometry (mg) of the underlined carbon in CH₃CN.

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The orbital hybridization on the carbon atoms in C₂H₂is ________.

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Determine the electron geometry,molecular geometry and polarity of TeCl₆.

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Determine the electron geometry (eg) and molecular geometry (mg) of CO₃²^⁻.

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Using the VSEPR model,the molecular geometry of the central atom in NCl₃ is ________.

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Using the VSEPR model,the molecular geometry of the central atom in BF₃ is ________.

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Determine the electron geometry (eg) and molecular geometry (mg) of BrF₃.

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What is the molecular geometry of SBr₄?

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Using the VSEPR model,the molecular geometry of the central atom in CF₄ is ________.

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Determine the electron geometry (eg) and molecular geometry (mg) of SiF₄.

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How many of the following molecules have sp³d hybridization on the central atom? SiCl₄ BrF₅ AsF₅ BrF₃

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What is the molecular geometry of SF₅^-?

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Place the following in order of increasing dipole moment. I.BCl₃ II.BIF₂ III.BClF₂

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Draw the Lewis structure for BrF₄^-.What is the hybridization on the Br atom?

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How many of the following molecules have sp² hybridization on the central atom? HCN SO₂ OCl₂ XeCl₂

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What is the bond order in He₂ molecule?

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Determine the electron geometry (eg) and molecular geometry (mg) of XeF₄.

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