Question 1

How many of the following molecules contain at least one pi bond? C2H6 Cl2CO C2Cl4 SeS3

Accepted Answer

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

Question 2

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)  sp2

Question 3

Draw the Lewis structure for C2H2. What is the hybridization on the C atoms?

Accepted Answer

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

Question 4

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

Accepted Answer

A)  180°
B)  
C)  
D)  109.5°
E)  <120°

Question 5

Determine the electron geometry (eg) and molecular geometry (mg) of the underlined atom CH3OCH3.

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 6

Determine the molecular geometry for the molecule XeF4.

Accepted Answer

A)  Square planar
B)  Tetrahedral
C)  T-shaped
D)  Square pyramidal
E)  Trigonal planar

Question 7

How many of the following molecules are polar? XeCl2 COF2 PCl4F SF6

Accepted Answer

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

Question 8

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

Accepted Answer

A)  HCN
B)  CF4
C)  SeBr4
D)  ICl3
E)  Both B and C are nonpolar and contain a polar covalent bond.

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

Determine the molecular geometry for the molecule XeF₄.

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

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

Correct Answer
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Give the approximate bond angle for a molecule with tetrahedral electron geometry and trigonal pyramidal molecular geometry.

Correct Answer
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Draw the Lewis structure for C₂H₂. What is the hybridization on the C atoms?

Correct Answer
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How many of the following molecules are polar? XeCl₂ COF₂ PCl₄F SF₆

Correct Answer
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Determine the electron geometry (eg) and molecular geometry (mg) of the underlined atom CH₃OCH₃.

Correct Answer
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How many of the following molecules contain at least one pi bond? C₂H₆ Cl₂CO C₂Cl₄ SeS₃

Correct Answer
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Exam 10: Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Determine the molecular geometry for the molecule XeF4.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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

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Draw the Lewis structure for C2H2. What is the hybridization on the C atoms?

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How many of the following molecules are polar? XeCl2 COF2 PCl4F SF6

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Determine the electron geometry (eg) and molecular geometry (mg) of the underlined atom CH3OCH3.

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How many of the following molecules contain at least one pi bond? C2H6 Cl2CO C2Cl4 SeS3

Correct AnswerverifiedShow Answer

Determine the molecular geometry for the molecule XeF₄.

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

Correct Answer
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Correct Answer
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Draw the Lewis structure for C₂H₂. What is the hybridization on the C atoms?

Correct Answer
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How many of the following molecules are polar? XeCl₂ COF₂ PCl₄F SF₆

Correct Answer
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Determine the electron geometry (eg) and molecular geometry (mg) of the underlined atom CH₃OCH₃.

Correct Answer
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How many of the following molecules contain at least one pi bond? C₂H₆ Cl₂CO C₂Cl₄ SeS₃

Correct Answer
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