Question 1

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

Question 2

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

Question 3

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

Question 4

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

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.

Question 6

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

Question 7

Give the hybridization for the S in SF6.

Accepted Answer

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

Question 8

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

Accepted Answer

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

Question 9

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

Question 10

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

Question 11

The bond angle in H2Se is

Accepted Answer

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

Question 12

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

Question 13

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.

Question 14

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

Question 15

What is the molecular geometry of SeCl4?

Accepted Answer

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

Question 16

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

Question 17

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.

Question 18

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

Question 19

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⁻

Question 20

Give the hybridization for the Br in BrO4⁻.

Accepted Answer

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

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

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

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

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Describe a pi bond.

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

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Soap works with water because

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

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Give the hybridization for the Br in BrO4⁻.

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

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What is the molecular geometry of SeCl4?

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

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

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The bond angle in H2Se is

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Describe a sigma bond.

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

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

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

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

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

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

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Give the hybridization for the S in SF6.

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

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

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

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

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Give the hybridization for the Br in BrO₄⁻.

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What is the molecular geometry of SeCl₄?

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

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

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The bond angle in H₂Se is

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

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

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

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Give the hybridization for the S in SF₆.

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