Question 1

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

Accepted Answer

A)  a
B)  b
C)  c
D)  d
E)  None of these choices is correct.F) C) and D)
G) B) and E)

Question 2

Select the best Lewis structure for ClCN.

Accepted Answer

A)  a
B)  b
C)  c
D)  d
E)  eF) All of the above
G) B) and C)

Question 3

Predict the ideal bond angles in GeCl4 using the molecular shape given by the VSEPR theory.

Accepted Answer

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

Question 4

Predict the ideal bond angles around carbon in C2I2 using the molecular shape given by the VSEPR theory.

Accepted Answer

A)  90°
B)  109°
C)  120°
D)  180°
E)  None of these choices is correct.F) A) and E)
G) A) and B)

Question 5

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 B)
G) A) and C)

Question 6

In which one of the following structures does the central atom have a formal charge of +2?

Accepted Answer

A)  a
B)  b
C)  c
D)  d
E)  eF) A) and E)
G) A) and D)

Question 7

Select the Lewis structure in which formal charges are minimized for the periodate anion,IO4-. 4-.   A) a B) b C) c D) d E) e" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  a
B)  b
C)  c
D)  d
E)  eF) A) and B)
G) A) and C)

Question 8

According to VSEPR theory,a molecule with the general formula AX4E2 will have a _____ molecular shape.

Accepted Answer

A)  tetrahedral
B)  square pyramidal
C)  square planar
D)  octahedral
E)  see-sawF) C) and E)
G) A) and B)

Question 9

What is the molecular shape of SiF62- as predicted by the VSEPR theory? 62- as predicted by the VSEPR theory?   A) trigonal bipyramidal B) hexagonal C) tetrahedral D) see-saw E) octahedral" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  trigonal bipyramidal
B)  hexagonal
C)  tetrahedral
D)  see-saw
E)  octahedralF) A) and E)
G) C) and D)

Question 10

Which one of the following molecules and ions will have a planar geometry?

Accepted Answer

A)  PCl3
B)  BF4-
C)  XeF4
D)  BrF5
E)  H3O+F) B) and C)
G) A) and E)

Question 11

What is the molecular shape of ClO3F as predicted by the VSEPR theory? 3F as predicted by the VSEPR theory?   A) trigonal pyramidal B) square planar C) square pyramidal D) tetrahedral E) octahedral" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  trigonal pyramidal
B)  square planar
C)  square pyramidal
D)  tetrahedral
E)  octahedralF) None of the above
G) A) and B)

Question 12

List the three important ways in which molecules can violate the octet rule,and in each case draw one Lewis structure of your choice as an example.

Accepted Answer

Electron-deficient molecules have fewer ...

Question 13

What is the molecular shape of NO2- as predicted by the VSEPR theory?

Accepted Answer

A)  linear
B)  trigonal planar
C)  bent
D)  tetrahedral
E)  resonantF) C) and D)
G) None of the above

Question 14

According to VSEPR theory,a molecule with the general formula AX5E will have a ______ molecular shape.

Accepted Answer

A)  tetrahedral
B)  trigonal bipyramidal
C)  square pyramidal
D)  octahedral
E)  see-sawF) A) and E)
G) B) and D)

Question 15

Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90° bond angle in it.(In each case except water,the central atom is the first one in the formula. )

Accepted Answer

A)  AlCl4-
B)  NH3
C)  PCl5
D)  CO2
E)  H2OF) A) and B)
G) A) and C)

Question 16

A molecule which contains polar bonds will always have a dipole moment.

Accepted Answer

A) True 
 B)False

Question 17

Boron never achieves an octet in any of its compounds.

Accepted Answer

A) True 
 B)False

Question 18

What is the molecular shape of NH2Cl as predicted by the VSEPR theory?

Accepted Answer

A)  trigonal pyramidal
B)  tetrahedral
C)  T-shaped
D)  see-saw
E)  trigonal planarF) A) and E)
G) None of the above

Question 19

According to VSEPR theory,a molecule with the general formula AX2E3 will have a _____ molecular shape.

Accepted Answer

A)  bent
B)  linear
C)  trigonal planar
D)  T-shaped
E)  trigonal pyramidalF) None of the above
G) C) and D)

Question 20

What is the molecular shape of N2O as predicted by the VSEPR theory? 2O as predicted by the VSEPR theory?   A) trigonal pyramidal B) trigonal planar C) angular D) bent E) linear" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  trigonal pyramidal
B)  trigonal planar
C)  angular
D)  bent
E)  linearF) B) and D)
G) A) and E)

Exam 10: The Shapes of Molecules

What is the molecular shape of NH2Cl as predicted by the VSEPR theory?

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Select the Lewis structure in which formal charges are minimized for the periodate anion,IO4-.

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Boron never achieves an octet in any of its compounds.

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What is the molecular shape of NO2- as predicted by the VSEPR theory?

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Predict the ideal bond angles in GeCl4 using the molecular shape given by the VSEPR theory.

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Select the best Lewis structure for ClCN.

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Predict the ideal bond angles around carbon in C2I2 using the molecular shape given by the VSEPR theory.

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

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What is the molecular shape of ClO3F as predicted by the VSEPR theory?

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Which one of the following molecules and ions will have a planar geometry?

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According to VSEPR theory,a molecule with the general formula AX5E will have a ______ molecular shape.

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In which one of the following structures does the central atom have a formal charge of +2?

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What is the molecular shape of N2O as predicted by the VSEPR theory?

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List the three important ways in which molecules can violate the octet rule,and in each case draw one Lewis structure of your choice as an example.

Correct AnswerverifiedElectron-deficient molecules have fewer ...View AnswerShow Answer

According to VSEPR theory,a molecule with the general formula AX4E2 will have a _____ molecular shape.

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

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According to VSEPR theory,a molecule with the general formula AX2E3 will have a _____ molecular shape.

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What is the molecular shape of SiF62- as predicted by the VSEPR theory?

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A molecule which contains polar bonds will always have a dipole moment.

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Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90° bond angle in it.(In each case except water,the central atom is the first one in the formula. )

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What is the molecular shape of NH₂Cl as predicted by the VSEPR theory?

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Select the Lewis structure in which formal charges are minimized for the periodate anion,IO₄^-.

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What is the molecular shape of NO₂^- as predicted by the VSEPR theory?

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Predict the ideal bond angles in GeCl₄ using the molecular shape given by the VSEPR theory.

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Predict the ideal bond angles around carbon in C₂I₂ using the molecular shape given by the VSEPR theory.

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

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What is the molecular shape of ClO₃F as predicted by the VSEPR theory?

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According to VSEPR theory,a molecule with the general formula AX₅E will have a ______ molecular shape.

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What is the molecular shape of N₂O as predicted by the VSEPR theory?

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Electron-deficient molecules have fewer ...
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According to VSEPR theory,a molecule with the general formula AX₄E₂ will have a _____ molecular shape.

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According to VSEPR theory,a molecule with the general formula AX₂E₃ will have a _____ molecular shape.

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What is the molecular shape of SiF₆^2- as predicted by the VSEPR theory?

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