Question 1

Match the number of valence electron pairs with the type of geometry that they typically exhibit.
-Trigonal planar

Accepted Answer

A)   5
B)   4
C)   3
D)   7E) None of the above
F) A) and B) B

Question 2

Match the number of valence electron pairs with the type of geometry that they typically exhibit.
-Linear

Accepted Answer

A)   6
B)   5
C)   4
D)   8E) All of the above
F) A) and B)

Question 3

Match the number of valence electron pairs with the type of geometry that they typically exhibit.
-Tetrahedral

Accepted Answer

A)   4
B)   3
C)   2
D)   6E) A) and B)
F) A) and C)

Question 4

Which of the following statements are false? Select all that apply.

Accepted Answer

A)   sp3 hybridization generates three sp3 hybrid orbitals.
B)   sp2 hybridization leaves one 2p orbital unhybridized.
C)   sp hybridization results from the hybridization of two 2p orbitals.
D)   Hybridization occurs between atomics orbitals of the lowest-possible energy.
E)   Hybridization only occurs in molecules possessing single covalent bonds.F) None of the above
G) C) and E) A,C,E

Question 5

Match the following geometries with the type of hybridized orbital that exhibits each geometry.
-Tetrahedral

Accepted Answer

A)   sp
B)   sp2
C)   sp3D) All of the above
E) B) and C)

Question 6

Place the following bonds in order of relative length, with 1 being the shortest and 3 being the longest.

Accepted Answer

a. Single bond = 3
b...

Question 7

Match the following geometries with the type of hybridized orbital that exhibits each geometry.
-Linear

Accepted Answer

A)   sp
B)   sp2
C)   sp3D) A) and B)
E) A) and C)

Question 8

Which of the following statements is true?

Accepted Answer

A)   The atomic radius is the distance between two covalently bonded atoms of the same element.
B)   The atomic radius is half the distance between two covalently bonded atoms of the same element.
C)   The atomic radius is the distance between two covalently bonded atoms of different elements.
D)   The atomic radius is half the distance between two covalently bonded atoms of different elements.
E)   The atomic radius is the distance between two ionically bonded atoms of the same element.F) A) and C)
G) B) and C)

Question 9

A trigonal bipyramidal geometry exhibits two characteristic bond angles. Which bond angles are these?

Accepted Answer

A)   90
B)   109.5
C)   120
D)   180
E)   45F) A) and B)
G) C) and E)

Question 10

Propane has the structural formula shown below. How many different conformations can propane exist in?

Accepted Answer

A)   One
B)   Two
C)   Three
D)   Four
E)   An infinite numberF) A) and C)
G) B) and E)

Question 11

Rotation is possible about which of the following bonds along the backbone of a polypeptide chain? Select any that apply.

Accepted Answer

A)   C-C
B)   C-N
C)   C-N (peptide) D) A) and B)
E) A) and C)

Question 12

Match the following geometries with the type of hybridized orbital that exhibits each geometry.
-Trigonal planar

Accepted Answer

A)   sp
B)   sp2
C)   sp3D) None of the above
E) All of the above

Question 13

Carbon, hydrogen, nitrogen, and oxygen have the following atomic radii (in picometres) : C = 77; H = 37; O = 73. Which of the following covalent bonds is the longest?

Accepted Answer

A)   C-C
B)   C-O
C)   C=C
D)   C-H
E)   CCF) B) and E)
G) A) and E)

Question 14

A molecule of water adopts which one of the following geometries?

Accepted Answer

A)   Linear
B)   Trigonal planar
C)   Octahedral
D)   Tetrahedral
E)   Trigonal bipyramidalF) C) and D)
G) B) and E)

Question 15

Which of the following are taken into account when applying VSEPR theory? Select all that apply.

Accepted Answer

A)   Sigma-bonding pairs
B)   Pi-bonding pairs
C)   Anti-bonding pairs
D)   Non-bonding pairs
E)   Unpaired valence electronsF) All of the above
G) A) and B)

Question 16

A tetrahedral geometry typically exhibits which of the following bond angles?

Accepted Answer

A)   90
B)   180
C)   109.5
D)   106.5
E)   120F) A) and E)
G) None of the above

Question 17

The 'R' in VSEPR theory denotes which the following words?

Accepted Answer

A)   Resonance
B)   Repulsion
C)   Redistribution
D)   Radius
E)   RelationshipF) A) and B)
G) D) and E) B

Question 18

Which of the following statements about non-bonding pairs is true?

Accepted Answer

A)   Non-bonding pairs increase the typical bond angles associated with a particular geometry as predicted by VSEPR theory.
B)   Non-bonding pairs decrease the typical bond angles associated with a particular geometry as predicted by VSEPR theory.
C)   Non-bonding pairs have no effect on the typical bond angles associated with a particular geometry as predicted by VSEPR theory.D) None of the above
E) All of the above

Question 19

Match the number of valence electron pairs with the type of geometry that they typically exhibit.
-Octahedral

Accepted Answer

A)   7
B)   6
C)   5
D)   9E) All of the above
F) None of the above

Question 20

Carbon, hydrogen, nitrogen, and oxygen have the following atomic radii (in picometres) : C = 77; H = 37; N = 74; O = 73. Which of the following covalent bonds is the shortest?

Accepted Answer

A)   C-H
B)   N-H
C)   C-O
D)   C-C
E)   O-HF) All of the above
G) B) and E)

Exam 8: Molecular Shape and Structure: Life in Three Dimensions

Match the number of valence electron pairs with the type of geometry that they typically exhibit. -Trigonal planar

Correct AnswerverifiedB

Match the number of valence electron pairs with the type of geometry that they typically exhibit. -Linear

Correct AnswerverifiedShow Answer

Match the number of valence electron pairs with the type of geometry that they typically exhibit. -Tetrahedral

Correct AnswerverifiedShow Answer

Which of the following statements are false? Select all that apply.

Correct AnswerverifiedA,C,E

Match the following geometries with the type of hybridized orbital that exhibits each geometry. -Tetrahedral

Correct AnswerverifiedShow Answer

Place the following bonds in order of relative length, with 1 being the shortest and 3 being the longest.

Correct Answerverifieda. Single bond = 3b...View AnswerShow Answer

Match the following geometries with the type of hybridized orbital that exhibits each geometry. -Linear

Correct AnswerverifiedShow Answer

Which of the following statements is true?

Correct AnswerverifiedShow Answer

A trigonal bipyramidal geometry exhibits two characteristic bond angles. Which bond angles are these?

Correct AnswerverifiedShow Answer

Propane has the structural formula shown below. How many different conformations can propane exist in?

Correct AnswerverifiedShow Answer

Rotation is possible about which of the following bonds along the backbone of a polypeptide chain? Select any that apply.

Correct AnswerverifiedShow Answer

Match the following geometries with the type of hybridized orbital that exhibits each geometry. -Trigonal planar

Correct AnswerverifiedShow Answer

Carbon, hydrogen, nitrogen, and oxygen have the following atomic radii (in picometres) : C = 77; H = 37; O = 73. Which of the following covalent bonds is the longest?

Correct AnswerverifiedShow Answer

A molecule of water adopts which one of the following geometries?

Correct AnswerverifiedShow Answer

Which of the following are taken into account when applying VSEPR theory? Select all that apply.

Correct AnswerverifiedShow Answer

A tetrahedral geometry typically exhibits which of the following bond angles?

Correct AnswerverifiedShow Answer

The 'R' in VSEPR theory denotes which the following words?

Correct AnswerverifiedB

Which of the following statements about non-bonding pairs is true?

Correct AnswerverifiedShow Answer

Match the number of valence electron pairs with the type of geometry that they typically exhibit. -Octahedral

Correct AnswerverifiedShow Answer

Carbon, hydrogen, nitrogen, and oxygen have the following atomic radii (in picometres) : C = 77; H = 37; N = 74; O = 73. Which of the following covalent bonds is the shortest?

Correct AnswerverifiedShow Answer

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B

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A,C,E

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a. Single bond = 3
b...
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B

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