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

Question 2

A molecule containing a central atom with sp3d hybridization has a(n)________ electron geometry.

Accepted Answer

A)  seesaw 
B)  bent 
C)  octahedral 
D)  trigonal planar 
E)  trigonal bipyramidal 
A)  seesaw 
B)  bent 
C)  octahedral 
D)  trigonal planar 
E)  trigonal bipyramidal

Question 3

What geometric arrangement of charge clouds is expected for an atom that has three charge clouds?

Accepted Answer

A)  trigonal bipyramidal 
B)  linear 
C)  trigonal 
D)  tetrahedral 
A)  trigonal bipyramidal 
B)  linear 
C)  trigonal 
D)  tetrahedral

Question 4

What is the O-S-O bond angle in SO3?

Accepted Answer

A)  45° 
B)  109.5° 
C)  120° 
D)  210° 
E)  107° 
A)  45° 
B)  109.5° 
C)  120° 
D)  210° 
E)  107°

Question 5

Using the VSEPR model,the molecular geometry of the central atom in NH2- is

Accepted Answer

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

Question 6

A molecule,that is sp3d hybridized and has a molecular geometry of seesaw,has ________ bonding groups and ________ lone pairs around its central atom.

Accepted Answer

A)  5, 1 
B)  4, 2 
C)  4, 1 
D)  3, 2 
E)  2, 3 
A)  5, 1 
B)  4, 2 
C)  4, 1 
D)  3, 2 
E)  2, 3

Question 7

Identify the number of electron groups around a molecule with sp3d2 hybridization.

Accepted Answer

A)  6 
B)  2 
C)  3 
D)  4 
E)  5 
A)  6 
B)  2 
C)  3 
D)  4 
E)  5

Question 8

Give the electron geometry (eg),molecular geometry (mg),and hybridization for H2Se.

Accepted Answer

A)  eg = tetrahedral, mg = bent, sp3 
B)  eg = trigonal pyramidal, mg = trigonal planar, sp3 
C)  eg = tetrahedral, mg = trigonal pyramidal, sp3 
D)  eg = bent, mg = tetrahedral, sp2 
E)  eg = tetrahedral, mg = tetrahedral, sp2 
A)  eg = tetrahedral, mg = bent, sp3 
B)  eg = trigonal pyramidal, mg = trigonal planar, sp3 
C)  eg = tetrahedral, mg = trigonal pyramidal, sp3 
D)  eg = bent, mg = tetrahedral, sp2 
E)  eg = tetrahedral, mg = tetrahedral, sp2

Question 9

Place the following in order of decreasing X-A-X bond angle,where A represents the central atom and X represents the outer atoms in each molecule. CS2 CF4 SCl2

Accepted Answer

A)  CS2 = SCl2 > CF4 
B)  SCl2 > CF4 > CS2 
C)  CF4 > CS2 > SCl2 
D)  CS2 > CF4 > SCl2 
E)  CF4 > CS2 > SCl2 
A)  CS2 = SCl2 > CF4 
B)  SCl2 > CF4 > CS2 
C)  CF4 > CS2 > SCl2 
D)  CS2 > CF4 > SCl2 
E)  CF4 > CS2 > SCl2

Question 10

Give the hybridization for the O in OF2.

Accepted Answer

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

Question 11

Draw the Lewis structure for the molecule CH2CHCH3.How many sigma and pi bonds does it contain?

Accepted Answer

A)  8 sigma, 1 pi 
B)  9 sigma, 0 pi 
C)  9 sigma, 1 pi 
D)  7 sigma, 0 pi 
E)  8 sigma, 2 pi 
A)  8 sigma, 1 pi 
B)  9 sigma, 0 pi 
C)  9 sigma, 1 pi 
D)  7 sigma, 0 pi 
E)  8 sigma, 2 pi

Question 12

Identify the number of electron groups around a molecule with sp3d hybridization.

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 13

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

Accepted Answer

A)  B22⁺ 
B)  B22⁻ 
C)  N22⁺ 
D)  C22⁻ 
E)  B2 
A)  B22⁺ 
B)  B22⁻ 
C)  N22⁺ 
D)  C22⁻ 
E)  B2

Question 14

Consider the following compound.How many sigma and pi bonds does it contain? CH3CHCHCO2H

Accepted Answer

A)  9 sigma, 4 pi 
B)  11 sigma, 2 pi 
C)  9 sigma, 0 pi 
D)  13 sigma, 2 pi 
E)  6 sigma, 2 pi 
A)  9 sigma, 4 pi 
B)  11 sigma, 2 pi 
C)  9 sigma, 0 pi 
D)  13 sigma, 2 pi 
E)  6 sigma, 2 pi

Question 15

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SO3.

Accepted Answer

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

Question 16

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

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 
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 17

A molecule containing a central atom with sp hybridization has a ________ electron geometry.

Accepted Answer

A)  linear 
B)  trigonal bipyramidal 
C)  trigonal planar 
D)  octahedral 
E)  bent 
A)  linear 
B)  trigonal bipyramidal 
C)  trigonal planar 
D)  octahedral 
E)  bent

Question 18

A molecule,that is sp3d2 hybridized and has a molecular geometry of square pyramidal,has ________ bonding groups and ________ lone pairs around its central atom.

Accepted Answer

A)  5, 1 
B)  4, 2 
C)  4, 1 
D)  3, 2 
E)  2, 3 
A)  5, 1 
B)  4, 2 
C)  4, 1 
D)  3, 2 
E)  2, 3

Question 19

Give the electron geometry (eg),molecular geometry (mg),and hybridization for NCl3.

Accepted Answer

A)  eg = tetrahedral, mg = trigonal planar, sp2 
B)  eg = trigonal pyramidal, mg = trigonal pyramidal, sp3 
C)  eg = tetrahedral, mg = trigonal pyramidal, sp3 
D)  eg = trigonal pyramidal, mg = tetrahedral, sp3 
E)  eg = trigonal planar, mg = trigonal planar, sp2 
A)  eg = tetrahedral, mg = trigonal planar, sp2 
B)  eg = trigonal pyramidal, mg = trigonal pyramidal, sp3 
C)  eg = tetrahedral, mg = trigonal pyramidal, sp3 
D)  eg = trigonal pyramidal, mg = tetrahedral, sp3 
E)  eg = trigonal planar, mg = trigonal planar, sp2

Question 20

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

Accepted Answer

A)  F2 
B)  F22⁺ 
C)  Ne22⁺ 
D)  O22⁺ 
E)  F22⁻ 
A)  F2 
B)  F22⁺ 
C)  Ne22⁺ 
D)  O22⁺ 
E)  F22⁻

Exam 10: Chemical Bonding Ii: Molecular Shapes,valence Bond Theory,

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

A molecule containing a central atom with sp3d hybridization has a(n)________ electron geometry.

What geometric arrangement of charge clouds is expected for an atom that has three charge clouds?

What is the O-S-O bond angle in SO3?

Using the VSEPR model,the molecular geometry of the central atom in NH2- is

A molecule,that is sp3d hybridized and has a molecular geometry of seesaw,has ________ bonding groups and ________ lone pairs around its central atom.

Identify the number of electron groups around a molecule with sp3d2 hybridization.

Give the electron geometry (eg),molecular geometry (mg),and hybridization for H2Se.

Place the following in order of decreasing X-A-X bond angle,where A represents the central atom and X represents the outer atoms in each molecule. CS2 CF4 SCl2

Give the hybridization for the O in OF2.

Draw the Lewis structure for the molecule CH2CHCH3.How many sigma and pi bonds does it contain?

Identify the number of electron groups around a molecule with sp3d hybridization.

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

Consider the following compound.How many sigma and pi bonds does it contain? CH3CHCHCO2H

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SO3.

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

A molecule containing a central atom with sp hybridization has a ________ electron geometry.

A molecule,that is sp3d2 hybridized and has a molecular geometry of square pyramidal,has ________ bonding groups and ________ lone pairs around its central atom.

Give the electron geometry (eg),molecular geometry (mg),and hybridization for NCl3.

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

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

A molecule containing a central atom with sp³d hybridization has a(n)________ electron geometry.

What is the O-S-O bond angle in SO₃?

Using the VSEPR model,the molecular geometry of the central atom in NH₂^- is

A molecule,that is sp³d hybridized and has a molecular geometry of seesaw,has bonding groups and lone pairs around its central atom.

Identify the number of electron groups around a molecule with sp³d² hybridization.

Give the electron geometry (eg),molecular geometry (mg),and hybridization for H₂Se.

Place the following in order of decreasing X-A-X bond angle,where A represents the central atom and X represents the outer atoms in each molecule. CS₂ CF₄ SCl₂

Give the hybridization for the O in OF₂.

Draw the Lewis structure for the molecule CH₂CHCH₃.How many sigma and pi bonds does it contain?

Identify the number of electron groups around a molecule with sp³d hybridization.

Consider the following compound.How many sigma and pi bonds does it contain? CH₃CHCHCO₂H

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SO₃.

A molecule,that is sp³d² hybridized and has a molecular geometry of square pyramidal,has bonding groups and lone pairs around its central atom.

Give the electron geometry (eg),molecular geometry (mg),and hybridization for NCl₃.