Question 1

The bond angle in H2Se is

Accepted Answer

A)  107°. 
B)  <104.5°. 
C)  109.5°. 
D)  190°. 
E)  145°. 
A)  107°. 
B)  <104.5°. 
C)  109.5°. 
D)  190°. 
E)  145°.

Question 2

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

Accepted Answer

A)  1 sigma, 1 pi 
B)  2 sigma, 1 pi 
C)  2 sigma, 2 pi 
D)  1 sigma, 2 pi 
A)  1 sigma, 1 pi 
B)  2 sigma, 1 pi 
C)  2 sigma, 2 pi 
D)  1 sigma, 2 pi

Question 3

Describe a sigma bond.

Accepted Answer

A)  side by side overlap of p orbitals 
B)  end to end overlap of p orbitals 
C)  s orbital overlapping with the side of a p orbital 
D)  overlap of two f orbitals 
E)  p orbital overlapping with a d orbital 
A)  side by side overlap of p orbitals 
B)  end to end overlap of p orbitals 
C)  s orbital overlapping with the side of a p orbital 
D)  overlap of two f orbitals 
E)  p orbital overlapping with a d orbital

Question 4

Draw 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 5

The hybrid orbital set used by the central atom in NO2- is

Accepted Answer

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

Question 6

Soap works with water because

Accepted Answer

A)  the polar head and the nonpolar tail attracts water. 
B)  the polar head attracts the grease and the nonpolar tail attracts water. 
C)  the polar head attracts water and the nonpolar tail attracts the grease. 
D)  the polar head and the nonpolar tail attracts the grease. 
A)  the polar head and the nonpolar tail attracts water. 
B)  the polar head attracts the grease and the nonpolar tail attracts water. 
C)  the polar head attracts water and the nonpolar tail attracts the grease. 
D)  the polar head and the nonpolar tail attracts the grease.

Question 7

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

Accepted Answer

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

Question 8

What is the molecular geometry of SeCl4?

Accepted Answer

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

Question 9

Which of the following best describes IBrCl-? It has a molecular geometry that is

Accepted Answer

A)  linear with no lone pairs on the I atom. 
B)  linear with lone pairs on the I atom. 
C)  nonlinear with no lone pairs on the I atom. 
D)  nonlinear with lone pairs on the I atom. 
A)  linear with no lone pairs on the I atom. 
B)  linear with lone pairs on the I atom. 
C)  nonlinear with no lone pairs on the I atom. 
D)  nonlinear with lone pairs on the I atom.

Question 10

A molecule containing a central atom with sp3 hybridization has a(n)________ electron geometry.

Accepted Answer

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

Question 11

Give the hybridization for the Br in BrO4⁻.

Accepted Answer

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

Question 12

A molecule containing a central atom with sp2 hybridization has a(n)________ electron geometry.

Accepted Answer

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

Question 13

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SO2.

Accepted Answer

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

Question 14

Describe a pi bond.

Accepted Answer

A)  side by side overlap of p orbitals 
B)  end to end overlap of p orbitals 
C)  s orbital overlapping with the end of a p orbital 
D)  overlap of two s orbitals 
E)  p orbital overlapping with a d orbital 
A)  side by side overlap of p orbitals 
B)  end to end overlap of p orbitals 
C)  s orbital overlapping with the end of a p orbital 
D)  overlap of two s orbitals 
E)  p orbital overlapping with a d orbital

Question 15

A molecule,that is sp3d hybridized and has a molecular geometry of linear,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 16

Use 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⁻

Question 17

Give the number of sigma bonds and pi bonds for benzene,C6H6.

Accepted Answer

A)  3 sigma bonds, 6 pi bonds 
B)  6 sigma bonds, 6 pi bonds 
C)  6 sigma bonds, 3 pi bonds 
D)  12 sigma bonds, 3 pi bonds 
E)  15 sigma bonds, 3 pi bonds 
A)  3 sigma bonds, 6 pi bonds 
B)  6 sigma bonds, 6 pi bonds 
C)  6 sigma bonds, 3 pi bonds 
D)  12 sigma bonds, 3 pi bonds 
E)  15 sigma bonds, 3 pi bonds

Question 18

Give the hybridization for the S in SF6.

Accepted Answer

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

Question 19

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

Accepted Answer

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

Question 20

A molecule with a T-shaped molecular geometry has a bond angle of

Accepted Answer

A)  <120° for equatorial bonds and <90° for axial bonds. 
B)  180°. 
C)  <90°. 
D)  120° for equatorial bonds and 90° for axial bonds. 
E)  120°. 
A)  <120° for equatorial bonds and <90° for axial bonds. 
B)  180°. 
C)  <90°. 
D)  120° for equatorial bonds and 90° for axial bonds. 
E)  120°.

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

The bond angle in H2Se is

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

Describe a sigma bond.

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

The hybrid orbital set used by the central atom in NO2- is

Soap works with water because

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

What is the molecular geometry of SeCl4?

Which of the following best describes IBrCl-? It has a molecular geometry that is

A molecule containing a central atom with sp3 hybridization has a(n)________ electron geometry.

Give the hybridization for the Br in BrO4⁻.

A molecule containing a central atom with sp2 hybridization has a(n)________ electron geometry.

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SO2.

Describe a pi bond.

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

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

Give the number of sigma bonds and pi bonds for benzene,C6H6.

Give the hybridization for the S in SF6.

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

A molecule with a T-shaped molecular geometry has a bond angle of

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Filters

The bond angle in H₂Se is

The hybrid orbital set used by the central atom in NO₂^- is

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

What is the molecular geometry of SeCl₄?

Which of the following best describes IBrCl^-? It has a molecular geometry that is

A molecule containing a central atom with sp³ hybridization has a(n)________ electron geometry.

Give the hybridization for the Br in BrO₄⁻.

A molecule containing a central atom with sp² hybridization has a(n)________ electron geometry.

Determine the electron geometry (eg),molecular geometry (mg),and polarity of SO₂.

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

Give the number of sigma bonds and pi bonds for benzene,C₆H₆.

Give the hybridization for the S in SF₆.

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