Question 1

Match each molecule with its shape of the central atom.
-water

Accepted Answer

A)  linear
B)  trigonal plamar
C)  tetrahedral
D)  bent
E)  trigonal planarF) pyramidalG) D) and E)
H) A) and E)

Question 2

Use VSEPR theory to predict the shape of the molecule or complex ion shown. Draw a Lewis dot structure to assist you in determining these shapes.
-NO₃-

Accepted Answer

The answer of Use VSEPR theory to predict the shape...

Question 3

Match each molecule with an angle around the central atom.
-ammonium ion

Accepted Answer

A)  105°
B)  107°
C)  120°
D)  118°
E)  109.5°F) 180°G) B) and D)
H) A) and F)

Question 4

Which of the following pictures best illustrates a tetrahedral shape for the molecule AB4?

Accepted Answer

A)   
B)   
C)   
D)   E) None of the above
F) B) and C)

Question 5

Match each molecule with its shape of the central atom.
-carbon disulfide

Accepted Answer

A)  linear
B)  trigonal plamar
C)  tetrahedral
D)  bent
E)  trigonal planarF) pyramidalG) C) and E)
H) A) and E)

Question 6

Which of the following sulfur-containing compounds or ions is not polar?

Accepted Answer

A)   SO₃
B)   H₂S
C)   HS-
D)   SOCL₂E) All of the above
F) B) and D)

Question 7

Which of the following compounds is polar?

Accepted Answer

A)   SO₃
B)   CO₂
C)   CS2
D)   H₂COE) A) and D)
F) A) and C)

Question 8

Use VSEPR theory to predict the shape of the molecule or complex ion shown. Draw a Lewis dot structure to assist you in determining these shapes.
-PH₃

Accepted Answer

The answer of Use VSEPR theory to predict the shape...

Question 9

What is the steric number of the central atom in boron trichloride?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) A) and B)
F) B) and D)

Question 10

The difference in electronegativity between H and in HF is higher than that between H and Cl in HCl.

Accepted Answer

A) True 
 B)False

Question 11

Carbon tetrachloride is polar.

Accepted Answer

A) True 
 B)False

Question 12

Match each of the ions with its corresponding shape.
-HC?-

Accepted Answer

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

Question 13

Identify each of the molecules as polar or non-polar.
-H?O

Accepted Answer

A)  non-polar
B)  polarC) A) and B)
D) undefined B

Question 14

Which of the following compounds is polar?

Accepted Answer

A)   N₂
B)   O₂
C)   SOCL₂
D)   CO₂E) A) and B)
F) A) and C) C

Question 15

Match the shape and number of electron groups at the central atom with the number of bonding pairs of electrons on the central atom.
-trigonal planar, three

Accepted Answer

A)  4
B)  3
C)  2D) B) and C)
E) A) and C) B

Question 16

Match each of the ions with its corresponding shape.
-CH?+

Accepted Answer

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

Question 17

Match each of the ions with its corresponding shape.
-CH?-

Accepted Answer

A)  bent
B)  trigonal planar
C)  linear
D)  pyramidal
E)  tetrahedralF) All of the above
G) B) and D)

Question 18

The pyramidal structure is the tetrahedral arrangement minus a bond but with a lone pair.

Accepted Answer

A) True 
 B)False

Question 19

In a molecule having four pairs of electrons around the central atom and a pyramidal shape, how many bonding pairs of electrons does the central atom have?

Accepted Answer

A)   2
B)   1
C)   4
D)   3E) A) and B)
F) A) and C)

Question 20

Bonds are regions of negative charge and therefore repel each other.

Accepted Answer

A) True 
 B)False

Exam 6: The Shape of Molecules

Match each molecule with its shape of the central atom. -water

Correct AnswerverifiedShow Answer

Use VSEPR theory to predict the shape of the molecule or complex ion shown. Draw a Lewis dot structure to assist you in determining these shapes. -NO₃-

Correct AnswerverifiedShow Answer

Match each molecule with an angle around the central atom. -ammonium ion

Correct AnswerverifiedShow Answer

Which of the following pictures best illustrates a tetrahedral shape for the molecule AB4?

Correct AnswerverifiedShow Answer

Match each molecule with its shape of the central atom. -carbon disulfide

Correct AnswerverifiedShow Answer

Which of the following sulfur-containing compounds or ions is not polar?

Correct AnswerverifiedShow Answer

Which of the following compounds is polar?

Correct AnswerverifiedShow Answer

Use VSEPR theory to predict the shape of the molecule or complex ion shown. Draw a Lewis dot structure to assist you in determining these shapes. -PH₃

Correct AnswerverifiedShow Answer

What is the steric number of the central atom in boron trichloride?

Correct AnswerverifiedShow Answer

The difference in electronegativity between H and in HF is higher than that between H and Cl in HCl.

Correct AnswerverifiedShow Answer

Carbon tetrachloride is polar.

Correct AnswerverifiedShow Answer

Match each of the ions with its corresponding shape. -HC?-

Correct AnswerverifiedShow Answer

Identify each of the molecules as polar or non-polar. -H?O

Correct AnswerverifiedB

Which of the following compounds is polar?

Correct AnswerverifiedC

Match the shape and number of electron groups at the central atom with the number of bonding pairs of electrons on the central atom. -trigonal planar, three

Correct AnswerverifiedB

Match each of the ions with its corresponding shape. -CH?+

Correct AnswerverifiedShow Answer

Match each of the ions with its corresponding shape. -CH?-

Correct AnswerverifiedShow Answer

The pyramidal structure is the tetrahedral arrangement minus a bond but with a lone pair.

Correct AnswerverifiedShow Answer

In a molecule having four pairs of electrons around the central atom and a pyramidal shape, how many bonding pairs of electrons does the central atom have?

Correct AnswerverifiedShow Answer

Bonds are regions of negative charge and therefore repel each other.

Correct AnswerverifiedShow Answer

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B

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