Question 1

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. 
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. A,C,E

Question 2

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)  7 
A)  5 
B)  4 
C)  3 
D)  7 B

Question 3

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

Accepted Answer

A)  Resonance 
B)  Repulsion 
C)  Redistribution 
D)  Radius 
E)  Relationship 
A)  Resonance 
B)  Repulsion 
C)  Redistribution 
D)  Radius 
E)  Relationship B

Question 4

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 number 
A)  One 
B)  Two 
C)  Three 
D)  Four 
E)  An infinite number

Question 5

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

Accepted Answer

A)  sp 
B)  sp2 
C)  sp3 
A)  sp 
B)  sp2 
C)  sp3

Question 6

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

Accepted Answer

A)  CF1F1F1S1F1F1F10-C 
B)  CF1F1F1S1F1F1F10-N 
C)  C-N (peptide) 
A)  CF1F1F1S1F1F1F10-C 
B)  CF1F1F1S1F1F1F10-N 
C)  C-N (peptide)

Question 7

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 8

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

Accepted Answer

A)  sp 
B)  sp2 
C)  sp3 
A)  sp 
B)  sp2 
C)  sp3

Question 9

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)  9 
A)  7 
B)  6 
C)  5 
D)  9

Question 10

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-H 
A)  C-H 
B)  N-H 
C)  C-O 
D)  C-C 
E)  O-H

Question 11

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)  CF1F1F1S1F1F1F10C 
A)  C-C 
B)  C-O 
C)  C=C 
D)  C-H 
E)  CF1F1F1S1F1F1F10C

Question 12

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

Accepted Answer

A)  sp 
B)  sp2 
C)  sp3 
A)  sp 
B)  sp2 
C)  sp3

Question 13

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 electrons 
A)  Sigma-bonding pairs 
B)  Pi-bonding pairs 
C)  Anti-bonding pairs 
D)  Non-bonding pairs 
E)  Unpaired valence electrons

Question 14

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

Accepted Answer

A)  90F1F1F1S1F1F1F10 
B)  180F1F1F1S1F1F1F10 
C)  109.5F1F1F1S1F1F1F10 
D)  106.5F1F1F1S1F1F1F10 
E)  120F1F1F1S1F1F1F10 
A)  90F1F1F1S1F1F1F10 
B)  180F1F1F1S1F1F1F10 
C)  109.5F1F1F1S1F1F1F10 
D)  106.5F1F1F1S1F1F1F10 
E)  120F1F1F1S1F1F1F10

Question 15

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. 
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.

Question 16

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)  8 
A)  6 
B)  5 
C)  4 
D)  8

Question 17

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. 
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.

Question 18

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

Accepted Answer

A)  90F1F1F1S1F1F1F10 
B)  109.5F1F1F1S1F1F1F10 
C)  120F1F1F1S1F1F1F10 
D)  180F1F1F1S1F1F1F10 
E)  45F1F1F1S1F1F1F10 
A)  90F1F1F1S1F1F1F10 
B)  109.5F1F1F1S1F1F1F10 
C)  120F1F1F1S1F1F1F10 
D)  180F1F1F1S1F1F1F10 
E)  45F1F1F1S1F1F1F10

Question 19

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)  6 
A)  4 
B)  3 
C)  2 
D)  6

Question 20

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

Accepted Answer

A)  Linear 
B)  Trigonal planar 
C)  Octahedral 
D)  Tetrahedral 
E)  Trigonal bipyramidal 
A)  Linear 
B)  Trigonal planar 
C)  Octahedral 
D)  Tetrahedral 
E)  Trigonal bipyramidal

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

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

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

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

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

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

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

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

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

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?

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?

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

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

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

Which of the following statements is true?

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

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

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

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

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

Chemical Analysis: Characterizing Chemical Compounds

Acids, Bases, and Buffer Solutions: Life in an Aqueous Environment

Kinetics: What Affects the Speed of a Reaction

Equilibria: How Far Do Reactions Go

Energy: What Makes Reactions Go

Reaction Mechanisms: The Chemical Changes That Drive the Chemistry of Life

Chemical Reactions, Oxidation, and Reduction: Bringing Molecules to Life

Metals in Biology: Life Beyond Carbon

Biological Macromolecules: The Infrastructure of Life

Isomerism: Generating Chemical Variety

Functional Groups: Adding Function to the Framework of Life

Hydrocarbons: The Framework of Life

Moles, Concentrations, and Dilutions: Making Sense of Chemical Numbers

Molecular Interactions: Holding It All Together

Compounds and Chemical Bonding: Bringing Atoms Together

Atoms: The Foundations of Life

Introduction: Why Biologists Need Chemistry

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

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

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

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

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

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

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

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

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

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

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?

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?

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

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

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

Which of the following statements is true?

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

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

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

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

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

Chemical Analysis: Characterizing Chemical Compounds

Acids, Bases, and Buffer Solutions: Life in an Aqueous Environment

Kinetics: What Affects the Speed of a Reaction

Equilibria: How Far Do Reactions Go

Energy: What Makes Reactions Go

Reaction Mechanisms: The Chemical Changes That Drive the Chemistry of Life

Chemical Reactions, Oxidation, and Reduction: Bringing Molecules to Life

Metals in Biology: Life Beyond Carbon

Biological Macromolecules: The Infrastructure of Life

Isomerism: Generating Chemical Variety

Functional Groups: Adding Function to the Framework of Life

Hydrocarbons: The Framework of Life

Moles, Concentrations, and Dilutions: Making Sense of Chemical Numbers

Molecular Interactions: Holding It All Together

Compounds and Chemical Bonding: Bringing Atoms Together

Atoms: The Foundations of Life

Introduction: Why Biologists Need Chemistry

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