Question 1

Which of the following correctly lists species in order of increasing bond order?

Accepted Answer

A)  C2 2 2 2
B)  Be2 2 2 2
C)  N2 2 2 2
D)  N2 2 2 2
E)  Be2 2 2 2F) A) and B)
G) All of the above

Question 2

Which one of the following molecules has tetrahedral geometry?

Accepted Answer

A)  XeF4
B)  BF3
C)  AsF5
D)  CF4
E)  NH3F) A) and E)
G) A) and C)

Question 3

Use VSEPR theory to predict the geometry of the PCl3 molecule.

Accepted Answer

A)  linear
B)  bent
C)  trigonal planar
D)  trigonal pyramidal
E)  tetrahedralF) A) and D)
G) A) and C)

Question 4

Which of the following correctly lists species in order of increasing bond length?

Accepted Answer

A)  O2 2+ 2-
B)  O2- 2 2+
C)  O2+ 2 2-
D)  O2- 2+ 2
E)  O2+ 2- 2F) A) and E)
G) A) and C)

Question 5

Complete the following table.

Accepted Answer

The answer of Complete the following table. ...

Question 6

Ibuprofen is used as an analgesic for the relief of pain, and also to help reduce fever.What is the hybridization state of carbon indicated by the arrow in the structure of ibuprofen shown below? 2 C) sp3 D) sp3d E) sp3d2" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Question 7

Give the number of lone pairs around the central atom and the molecular geometry of XeF2.

Accepted Answer

A)  0 lone pairs, linear
B)  1 lone pair, bent
C)  2 lone pairs, bent
D)  3 lone pairs, bent
E)  3 lone pairs, linearF) A) and E)
G) C) and E)

Question 8

Which one of the following molecules is nonpolar?

Accepted Answer

A)  NH3
B)  OF2
C)  CH3Cl
D)  H2O
E)  BeCl2F) D) and E)
G) B) and E)

Question 9

Give the number of lone pairs around the central atom and the molecular geometry of CBr4.

Accepted Answer

A)  0 lone pairs, square planar
B)  0 lone pairs, tetahedral
C)  1 lone pair, square pyramidal
D)  1 lone pair, trigonal bipyramidal
E)  2 lone pairs, square planarF) B) and D)
G) A) and D)

Question 10

Ibuprofen is used as an analgesic for the relief of pain, and also to help reduce fever.What is the hybridization state of carbon indicated by the arrow in the structure of ibuprofen shown below? 2 C) sp3 D) sp3d E) sp3d2" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2F) A) and C)
G) All of the above

Question 11

Give the number of lone pairs around the central atom and the geometry of the ion ClO3-.

Accepted Answer

A)  0 lone pairs, trigonal
B)  1 lone pair, bent
C)  1 lone pair, trigonal pyramidal
D)  2 lone pairs, T-shaped
E)  2 lone pairs, trigonalF) A) and B)
G) A) and C)

Question 12

Give the number of lone pairs around the central atom and the molecular geometry of XeF4.

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) B) and C)
G) A) and E)

Question 13

A bonding molecular orbital is of lower energy (more stable)than the atomic orbitals from which it was formed.

Accepted Answer

A) True 
 B)False

Question 14

According to the VSEPR theory, the actual F -As -F bond angles in the AsF4- ion are predicted to be

Accepted Answer

A)  109.5°
B)  90° and 120°
C)  180°
D)  
E)  < 90° and < 120°F) None of the above
G) C) and D)

Question 15

According to the VSEPR theory, all of the electron pair-electron pair repulsions about the central atom in PCl3 are of equal magnitude.

Accepted Answer

A) True 
 B)False

Question 16

Which one of the following molecules has a non-zero dipole moment?

Accepted Answer

A)  BeCl2
B)  Br2
C)  BF3
D)  IBr
E)  CO2F) A) and D)
G) All of the above

Question 17

More energy is required to break a bond with an order of 3/2 than is required to break a bond of order 2.

Accepted Answer

A) True 
 B)False

Question 18

The bond angle in ICl2- is expected to be

Accepted Answer

A)  a little less than 109.5°.
B)  109.5°.
C)  a little more than 109.5°.
D)  120°.
E)  180°.F) C) and D)
G) A) and B)

Question 19

According to VSEPR theory, which of the following triatomic ions should be linear: N3-, I3-, NO2-, ClO2-, SCN-.

Accepted Answer

N₃^-, I₃^-, and ...

Question 20

Indicate the number of $\pi$-bonds in C2H6.

Accepted Answer

The answer of Indicate the number of $\pi$-bonds in C2H6....

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

Give the number of lone pairs around the central atom and the molecular geometry of XeF2.

Correct AnswerverifiedShow Answer

Use VSEPR theory to predict the geometry of the PCl3 molecule.

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According to VSEPR theory, which of the following triatomic ions should be linear: N3-, I3-, NO2-, ClO2-, SCN-.

Correct AnswerverifiedN3-, I3-, and ...View AnswerShow Answer

Which one of the following molecules has tetrahedral geometry?

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A bonding molecular orbital is of lower energy (more stable)than the atomic orbitals from which it was formed.

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Which one of the following molecules is nonpolar?

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Give the number of lone pairs around the central atom and the geometry of the ion ClO3-.

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The bond angle in ICl2- is expected to be

Correct AnswerverifiedShow Answer

According to the VSEPR theory, all of the electron pair-electron pair repulsions about the central atom in PCl3 are of equal magnitude.

Correct AnswerverifiedShow Answer

Which of the following correctly lists species in order of increasing bond order?

Correct AnswerverifiedShow Answer

Ibuprofen is used as an analgesic for the relief of pain, and also to help reduce fever.What is the hybridization state of carbon indicated by the arrow in the structure of ibuprofen shown below?

Correct AnswerverifiedShow Answer

Give the number of lone pairs around the central atom and the molecular geometry of CBr4.

Correct AnswerverifiedShow Answer

Which one of the following molecules has a non-zero dipole moment?

Correct AnswerverifiedShow Answer

According to the VSEPR theory, the actual F -As -F bond angles in the AsF4- ion are predicted to be

Correct AnswerverifiedShow Answer

More energy is required to break a bond with an order of 3/2 than is required to break a bond of order 2.

Correct AnswerverifiedShow Answer

Which of the following correctly lists species in order of increasing bond length?

Correct AnswerverifiedShow Answer

Give the number of lone pairs around the central atom and the molecular geometry of XeF4.

Correct AnswerverifiedShow Answer

Ibuprofen is used as an analgesic for the relief of pain, and also to help reduce fever.What is the hybridization state of carbon indicated by the arrow in the structure of ibuprofen shown below?

Correct AnswerverifiedShow Answer

Complete the following table.

Correct AnswerverifiedShow Answer

Indicate the number of π\piπ -bonds in C2H6.

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Give the number of lone pairs around the central atom and the molecular geometry of XeF₂.

Correct Answer
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Use VSEPR theory to predict the geometry of the PCl₃ molecule.

Correct Answer
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According to VSEPR theory, which of the following triatomic ions should be linear: N₃^-, I₃^-, NO₂^-, ClO₂^-, SCN^-.

Correct Answer
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N₃^-, I₃^-, and ...
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Give the number of lone pairs around the central atom and the geometry of the ion ClO₃^-.

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The bond angle in ICl₂^- is expected to be

Correct Answer
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According to the VSEPR theory, all of the electron pair-electron pair repulsions about the central atom in PCl₃ are of equal magnitude.

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Give the number of lone pairs around the central atom and the molecular geometry of CBr₄.

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According to the VSEPR theory, the actual F -As -F bond angles in the AsF₄^- ion are predicted to be

Correct Answer
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Give the number of lone pairs around the central atom and the molecular geometry of XeF₄.

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Indicate the number of $\pi$ -bonds in C₂H₆.

Correct Answer
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