Question 1

According to VSEPR theory, which one of the following species has a tetrahedral geometry?

Accepted Answer

A)  IF4+
B)  IF4-
C)  PCl4+
D)  PCl4-
E)  SeF4F) A) and B)
G) None of the above

Question 2

What is the hybridization of As in the AsF4- ion?

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2F) B) and E)
G) B) and D)

Question 3

Which of the following species have the same geometries?

Accepted Answer

A)  NH2- and H2O
B)  NH2- and BeH2
C)  H2O and BeH2
D)  NH2-, H2O, and BeH2E) All of the above
F) B) and D)

Question 4

Using periodic trends, arrange the following molecules in order of increasing dipole moment: NH3, PH3, AsH3.

Accepted Answer

Question 5

Indicate the type of hybrid orbitals used by the central atom in BrF3.

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2F) B) and C)
G) D) and E)

Question 6

According to the VSEPR theory, the molecular geometry of the carbonate ion, CO32 -, is

Accepted Answer

A)  square planar.
B)  tetrahedral.
C)  pyramidal.
D)  trigonal planar.
E)  octahedral.F) A) and E)
G) C) and D)

Question 7

In benzene (C6H6), what is the hybridization of each carbon atom?

Accepted Answer

Question 8

The number of pi bonds in the oxalate ion (C2O42-) is

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) None of the above
G) A) and E)

Question 9

Indicate the number of $\pi$-bonds in C2H4.

Accepted Answer

The answer of Indicate the number of $\pi$-bonds in C2H4....

Question 10

Predict the geometry around the central atom in SO42-.

Accepted Answer

A)  trigonal planar
B)  trigonal pyramidal
C)  tetrahedral
D)  trigonal bipyramidal
E)  octahedralF) A) and E)
G) A) and D)

Question 11

Use VSEPR theory to predict the molecular geometry of CO32-.

Accepted Answer

Question 12

A species with a bond order of 1/2 may be stable.

Accepted Answer

A) True 
 B)False

Question 13

In which of the following would the bonding be strengthened with the addition of an electron to form the negative molecular ion?

Accepted Answer

A)  N2
B)  O2
C)  F2
D)  all of these
E)  none of theseF) C) and D)
G) A) and B)

Question 14

In which of the following would the bonding be weakened with the addition of an electron to form the negative molecular ion?

Accepted Answer

A)  B2
B)  C2
C)  N2
D)  all of these
E)  none of theseF) B) and E)
G) A) and E)

Question 15

According to VSEPR theory, which one of the following molecules should be nonlinear?

Accepted Answer

A)  CO2
B)  C2H2
C)  SO2
D)  BeCl2
E)  KrF2F) A) and E)
G) A) and B)

Question 16

Give the number of lone pairs around the central atom and the geometry of the ion PCl4-.

Accepted Answer

A)  0 lone pairs, tetrahedral
B)  1 lone pair, distorted tetrahedron (seesaw) 
C)  1 lone pair, square pyramidal
D)  1 lone pair, tetrahedral
E)  2 lone pairs, square planarF) A) and D)
G) None of the above

Question 17

Complete this sentence: The PCl5 molecule has

Accepted Answer

A)  nonpolar bonds, and is a nonpolar molecule.
B)  nonpolar bonds, but is a polar molecule.
C)  polar bonds, and is a polar molecule.
D)  polar bonds, but is a nonpolar molecule.E) C) and D)
F) B) and C)

Question 18

Which of the following molecules should be polar?
a.CH3OH
b.H2O
c.CH3OCH3

Accepted Answer

All of the...

Question 19

According to the VSEPR theory, will the molecule PF5 will be polar or nonpolar?

Accepted Answer

Question 20

How does the geometrical structure of PF5 differ from that of IF5?

Accepted Answer

PF₅ is trigonal bipyr...

Exam 10: Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

According to the VSEPR theory, the molecular geometry of the carbonate ion, CO32 -, is

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A species with a bond order of 1/2 may be stable.

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Predict the geometry around the central atom in SO42-.

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In which of the following would the bonding be weakened with the addition of an electron to form the negative molecular ion?

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Indicate the type of hybrid orbitals used by the central atom in BrF3.

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Which of the following species have the same geometries?

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Complete this sentence: The PCl5 molecule has

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In benzene (C6H6), what is the hybridization of each carbon atom?

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Give the number of lone pairs around the central atom and the geometry of the ion PCl4-.

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Using periodic trends, arrange the following molecules in order of increasing dipole moment: NH3, PH3, AsH3.

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The number of pi bonds in the oxalate ion (C2O42-) is

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What is the hybridization of As in the AsF4- ion?

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How does the geometrical structure of PF5 differ from that of IF5?

Correct AnswerverifiedPF5 is trigonal bipyr...View AnswerShow Answer

According to VSEPR theory, which one of the following molecules should be nonlinear?

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Indicate the number of π\piπ -bonds in C2H4.

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According to the VSEPR theory, will the molecule PF5 will be polar or nonpolar?

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Which of the following molecules should be polar? a.CH3OH b.H2O c.CH3OCH3

Correct AnswerverifiedAll of the...View AnswerShow Answer

In which of the following would the bonding be strengthened with the addition of an electron to form the negative molecular ion?

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Use VSEPR theory to predict the molecular geometry of CO32-.

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According to VSEPR theory, which one of the following species has a tetrahedral geometry?

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According to the VSEPR theory, the molecular geometry of the carbonate ion, CO₃^{2 -}, is

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Predict the geometry around the central atom in SO₄^2-.

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Indicate the type of hybrid orbitals used by the central atom in BrF₃.

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Complete this sentence: The PCl₅ molecule has

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In benzene (C₆H₆), what is the hybridization of each carbon atom?

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Give the number of lone pairs around the central atom and the geometry of the ion PCl₄^-.

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Using periodic trends, arrange the following molecules in order of increasing dipole moment: NH₃, PH₃, AsH₃.

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The number of pi bonds in the oxalate ion (C₂O₄^2-) is

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What is the hybridization of As in the AsF₄^- ion?

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How does the geometrical structure of PF₅ differ from that of IF₅?

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PF₅ is trigonal bipyr...
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Indicate the number of $\pi$ -bonds in C₂H₄.

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According to the VSEPR theory, will the molecule PF₅ will be polar or nonpolar?

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Which of the following molecules should be polar? a.CH₃OH b.H₂O c.CH₃OCH₃

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All of the...
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Use VSEPR theory to predict the molecular geometry of CO₃^2-.

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