Question 1

a. Draw and name three molecular shapes for molecules having the VSEPR formulas AX3, AX3E, and AX3E2, respectively.
b. If the three X groups in the above formulas are identical, which of the three shapes would result in a molecule with a dipole moment?

Accepted Answer

a. The three structures and th...

Question 2

Oxygen difluoride is a powerful oxidizing and fluorinating agent. Select its Lewis structure.

Accepted Answer

A)   
B)   
C)   
D)   
E)   None of the above is correct.F) B) and C)
G) A) and E)

Question 3

Predict the ideal bond angles in FNO using the molecular shape given by the VSEPR theory.

Accepted Answer

A)   90°
B)   109°
C)   120°
D)   180°
E)   between 120 and 180°F) A) and B)
G) None of the above

Question 4

Predict the smallest actual bond angle in BrF3 using the VSEPR theory.

Accepted Answer

A)   more than 120°
B)   exactly 120°
C)   between 109° and 120°
D)   between 90° and 109°
E)   less than 90°F) B) and D)
G) A) and E)

Question 5

The formal charge on Cl in the structure shown for the perchlorate ion is

Accepted Answer

A)   -2
B)   -1
C)   0
D)   +1
E)   +2F) B) and E)
G) B) and D)

Question 6

Using SO2 as an example, describe the sort of experimental data which might suggest that no single Lewis structure is an accurate representation of its bonding.

Accepted Answer

In the SO₂ molecule, the two sulfur-oxyge...

Question 7

What is the molecular shape of XeO2F2 as predicted by the VSEPR theory? 2F2 as predicted by the VSEPR theory?   A)  square planar B)  tetrahedral C)  square pyramidal D)  see-saw E)  octahedral" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   square planar
B)   tetrahedral
C)   square pyramidal
D)   see-saw
E)   octahedralF) A) and B)
G) A) and C)

Question 8

Select the correct Lewis structure for NOCl, a reactive material used as an ionizing solvent.

Accepted Answer

A)   
B)   
C)   
D)   
E)   None of the above is correct.F) A) and D)
G) B) and E)

Question 9

Which one of the following molecules contains a double bond?

Accepted Answer

A)   N2
B)   PCl5
C)   CH2O
D)   C2H2
E)   I2F) None of the above
G) A) and E)

Question 10

In which one of the following molecules are all the bonds single?

Accepted Answer

A)   O3
B)   POCl3
C)   CO
D)   COCl2
E)   N2H4F) A) and D)
G) C) and D)

Question 11

In the following Lewis structure for ClO3F, chlorine has a formal charge of ____ and an oxidation number of ____. 3F, chlorine has a formal charge of ____ and an oxidation number of ____.   A)  7, 7 B)  7, -1 C)  1, 1 D)  1, -1 E)  1, 7" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   7, 7
B)   7, -1
C)   1, 1
D)   1, -1
E)   1, 7F) A) and C)
G) A) and E)

Question 12

Use VSEPR theory to predict the electron group arrangement around iodine, the central atom in the ion IF2-.

Accepted Answer

A)   octahedral
B)   trigonal bipyramidal
C)   tetrahedral
D)   trigonal planar
E)   bentF) A) and E)
G) A) and C)

Question 13

The molecule AX2, where A and X are different elements, will have a dipole moment if the molecule is bent.

Accepted Answer

A) True 
 B)False

Question 14

Draw Lewis structures which obey the octet rule, for the following atoms, molecules, and ions, showing all valence electrons. Central atoms are shown in bold.
a. NH3
b. O3 (Hint: O3 is not cyclic)
c. HCN
d. SO3

Accepted Answer

A)11ec6d41_27c4_e72e_9cd1_85b54184eab2_T...

Question 15

Select the Lewis structure for XeO2F2 which correctly minimizes formal charges.

Accepted Answer

A)   2F2 which correctly minimizes formal charges. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
B)   2F2 which correctly minimizes formal charges. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
C)   2F2 which correctly minimizes formal charges. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
D)   2F2 which correctly minimizes formal charges. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
E)   2F2 which correctly minimizes formal charges. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) D) and E)
G) C) and D)

Question 16

Which one of the following Lewis structures is definitely incorrect?

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) A) and E)
G) D) and E)

Question 17

Predict the ideal bond angles around nitrogen in N2F2 using the molecular shape given by the VSEPR theory. (The two N atoms are the central atoms.)

Accepted Answer

A)   90°
B)   109°
C)   120°
D)   180°
E)   between 120 and 180°F) B) and D)
G) B) and C)

Question 18

What is the molecular shape of ClF2- as predicted by the VSEPR theory?

Accepted Answer

A)   linear
B)   bent
C)   see-saw
D)   T-shaped
E)   L-shapedF) D) and E)
G) B) and C)

Question 19

Select the correct Lewis structure for TeBr2.

Accepted Answer

A)   2. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
B)   2. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
C)   2. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
D)   2. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
E)   2. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) A) and B)
G) A) and C)

Question 20

What is the molecular shape of BCl3 as predicted by the VSEPR theory?

Accepted Answer

A)   linear
B)   trigonal planar
C)   bent
D)   tetrahedral
E)   trigonal pyramidalF) C) and D)
G) A) and D)

Exam 10: The Shapes of Molecules

a. Draw and name three molecular shapes for molecules having the VSEPR formulas AX3, AX3E, and AX3E2, respectively. b. If the three X groups in the above formulas are identical, which of the three shapes would result in a molecule with a dipole moment?

Correct Answerverifieda. The three structures and th...View AnswerShow Answer

Draw Lewis structures which obey the octet rule, for the following atoms, molecules, and ions, showing all valence electrons. Central atoms are shown in bold. a. NH3 b. O3 (Hint: O3 is not cyclic) c. HCN d. SO3

Correct AnswerverifiedA)11ec6d41_27c4_e72e_9cd1_85b54184eab2_T...View AnswerShow Answer

In which one of the following molecules are all the bonds single?

Correct AnswerverifiedShow Answer

In the following Lewis structure for ClO3F, chlorine has a formal charge of ____ and an oxidation number of ____.

Correct AnswerverifiedShow Answer

Select the correct Lewis structure for NOCl, a reactive material used as an ionizing solvent.

Correct AnswerverifiedShow Answer

Use VSEPR theory to predict the electron group arrangement around iodine, the central atom in the ion IF2-.

Correct AnswerverifiedShow Answer

Predict the ideal bond angles in FNO using the molecular shape given by the VSEPR theory.

Correct AnswerverifiedShow Answer

Oxygen difluoride is a powerful oxidizing and fluorinating agent. Select its Lewis structure.

Correct AnswerverifiedShow Answer

What is the molecular shape of XeO2F2 as predicted by the VSEPR theory?

Correct AnswerverifiedShow Answer

Predict the smallest actual bond angle in BrF3 using the VSEPR theory.

Correct AnswerverifiedShow Answer

The molecule AX2, where A and X are different elements, will have a dipole moment if the molecule is bent.

Correct AnswerverifiedShow Answer

Predict the ideal bond angles around nitrogen in N2F2 using the molecular shape given by the VSEPR theory. (The two N atoms are the central atoms.)

Correct AnswerverifiedShow Answer

The formal charge on Cl in the structure shown for the perchlorate ion is

Correct AnswerverifiedShow Answer

Select the correct Lewis structure for TeBr2.

Correct AnswerverifiedShow Answer

Select the Lewis structure for XeO2F2 which correctly minimizes formal charges.

Correct AnswerverifiedShow Answer

What is the molecular shape of BCl3 as predicted by the VSEPR theory?

Correct AnswerverifiedShow Answer

Using SO2 as an example, describe the sort of experimental data which might suggest that no single Lewis structure is an accurate representation of its bonding.

Correct AnswerverifiedIn the SO2 molecule, the two sulfur-oxyge...View AnswerShow Answer

Which one of the following molecules contains a double bond?

Correct AnswerverifiedShow Answer

Which one of the following Lewis structures is definitely incorrect?

Correct AnswerverifiedShow Answer

What is the molecular shape of ClF2- as predicted by the VSEPR theory?

Correct AnswerverifiedShow Answer

a. Draw and name three molecular shapes for molecules having the VSEPR formulas AX₃, AX₃E, and AX₃E₂, respectively. b. If the three X groups in the above formulas are identical, which of the three shapes would result in a molecule with a dipole moment?

Correct Answer
verified
a. The three structures and th...
View Answer

Draw Lewis structures which obey the octet rule, for the following atoms, molecules, and ions, showing all valence electrons. Central atoms are shown in bold. a. NH₃ b. O₃ (Hint: O₃ is not cyclic) c. HCN d. SO₃

Correct Answer
verified
A)11ec6d41_27c4_e72e_9cd1_85b54184eab2_T...
View Answer

Correct Answer
verified

In the following Lewis structure for ClO₃F, chlorine has a formal charge of and an oxidation number of .

Correct Answer
verified

Correct Answer
verified

Use VSEPR theory to predict the electron group arrangement around iodine, the central atom in the ion IF₂^-.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

What is the molecular shape of XeO₂F₂as predicted by the VSEPR theory?

Correct Answer
verified

Predict the smallest actual bond angle in BrF₃using the VSEPR theory.

Correct Answer
verified

The molecule AX₂, where A and X are different elements, will have a dipole moment if the molecule is bent.

Correct Answer
verified

Predict the ideal bond angles around nitrogen in N₂F₂using the molecular shape given by the VSEPR theory. (The two N atoms are the central atoms.)

Correct Answer
verified

Correct Answer
verified

Select the correct Lewis structure for TeBr₂.

Correct Answer
verified

Select the Lewis structure for XeO₂F₂which correctly minimizes formal charges.

Correct Answer
verified

What is the molecular shape of BCl₃as predicted by the VSEPR theory?

Correct Answer
verified

Using SO₂ as an example, describe the sort of experimental data which might suggest that no single Lewis structure is an accurate representation of its bonding.

Correct Answer
verified
In the SO₂ molecule, the two sulfur-oxyge...
View Answer

Correct Answer
verified

Correct Answer
verified

What is the molecular shape of ClF₂^- as predicted by the VSEPR theory?

Correct Answer
verified