Question 1

Which figure BEST illustrates how two molecules of ethanol interact?

Accepted Answer

A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e 
A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e

Question 2

What is the electron geometry of the carbon in formaldehyde, shown below?

Accepted Answer

A)  linear 
B)  bent 
C)  trigonal planar 
D)  trigonal pyramidal 
E)  tetrahedral 
A)  linear 
B)  bent 
C)  trigonal planar 
D)  trigonal pyramidal 
E)  tetrahedral

Question 3

Which molecule below exhibits the strongest intermolecular forces of attraction?

Accepted Answer

A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e 
A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e

Question 4

What is the H-C-H bond angle of each carbon in ethylene (C2H4)?

Accepted Answer

A)  Both are 180º. 
B)  Both are 120º. 
C)  Both are 109.5º. 
D)  One is 180º, and the other is 109.5º. 
E)  One is 120º, and the other is 109.5º. 
A)  Both are 180º. 
B)  Both are 120º. 
C)  Both are 109.5º. 
D)  One is 180º, and the other is 109.5º. 
E)  One is 120º, and the other is 109.5º.

Question 5

How does VSEPR theory explain the electron group geometry of a molecule?

Accepted Answer

A)  The bonds arrange themselves at 90º angles. 
B)  The groups are arranged as far away from each other as possible. 
C)  The groups are as close to each other as possible. 
D)  The bonds are close together but far away from the nonbonding pairs. 
E)  None of these answers explains VSEPR theory. 
A)  The bonds arrange themselves at 90º angles. 
B)  The groups are arranged as far away from each other as possible. 
C)  The groups are as close to each other as possible. 
D)  The bonds are close together but far away from the nonbonding pairs. 
E)  None of these answers explains VSEPR theory.

Question 6

Electrostatic interactions between positive and negative ions are called _______.

Accepted Answer

A)  ionic bonding 
B)  covalent bonding 
C)  dispersion forces 
D)  dipole-dipole forces 
E)  hydrogen bonding forces 
A)  ionic bonding 
B)  covalent bonding 
C)  dispersion forces 
D)  dipole-dipole forces 
E)  hydrogen bonding forces

Question 7

Which element is the MOST electronegative?

Accepted Answer

A)  fluorine 
B)  bromine 
C)  chlorine 
D)  iodine 
E)  boron 
A)  fluorine 
B)  bromine 
C)  chlorine 
D)  iodine 
E)  boron

Question 8

Does propane (shown)or octane (C8H18)exhibit stronger dispersion forces?

Accepted Answer

A)  Propane.The smaller molecules can get closer to one another. 
B)  Propane.It has a larger permanent dipole. 
C)  Octane.It has a larger permanent dipole. 
D)  Octane.It has more electrons. 
E)  They both have the same amount of forces. 
A)  Propane.The smaller molecules can get closer to one another. 
B)  Propane.It has a larger permanent dipole. 
C)  Octane.It has a larger permanent dipole. 
D)  Octane.It has more electrons. 
E)  They both have the same amount of forces.

Question 9

How many electron groups do the carbon atoms in ethylene (C2H4)have?

Accepted Answer

A)  They both have one group. 
B)  They both have two groups. 
C)  They both have three groups. 
D)  They both have four groups. 
E)  One has two groups, and the other has four groups. 
A)  They both have one group. 
B)  They both have two groups. 
C)  They both have three groups. 
D)  They both have four groups. 
E)  One has two groups, and the other has four groups.

Question 10

What is the molecular geometry of the atoms bonded to oxygen in methanol, shown below?

Accepted Answer

A)  linear 
B)  bent 
C)  trigonal planar 
D)  trigonal pyramidal 
E)  tetrahedral 
A)  linear 
B)  bent 
C)  trigonal planar 
D)  trigonal pyramidal 
E)  tetrahedral

Question 11

What is the angle between groups of electrons for an atom that has a linear electron geometry?

Accepted Answer

A)  90° 
B)  120° 
C)  180° 
D)  109.5° 
E)  360° 
A)  90° 
B)  120° 
C)  180° 
D)  109.5° 
E)  360°

Question 12

Does ethanol have a permanent dipole?

Accepted Answer

A)  Yes.The carbon is partially negative, and the oxygen is partially positive. 
B)  Yes.The carbon is partially negative, and the hydrogen is partially positive. 
C)  Yes.The hydrogen is partially positive, and the oxygen is partially negative. 
D)  Yes.The oxygen is partially positive, and the hydrogen is partially negative. 
E)  No.Ethanol only has a temporary dipole. 
A)  Yes.The carbon is partially negative, and the oxygen is partially positive. 
B)  Yes.The carbon is partially negative, and the hydrogen is partially positive. 
C)  Yes.The hydrogen is partially positive, and the oxygen is partially negative. 
D)  Yes.The oxygen is partially positive, and the hydrogen is partially negative. 
E)  No.Ethanol only has a temporary dipole.

Question 13

______ is the sharing of electrons between two atoms and is much stronger than intermolecular forces of attraction.

Accepted Answer

A)  Ionic bonding 
B)  Covalent bonding 
C)  Dispersion forces 
D)  Dipole-dipole forces 
E)  Hydrogen bonding forces 
A)  Ionic bonding 
B)  Covalent bonding 
C)  Dispersion forces 
D)  Dipole-dipole forces 
E)  Hydrogen bonding forces

Question 14

An atom, X, has a tetrahedral electron geometry but a trigonal pyramidal molecular geometry.How many atoms is atom X bonded to?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  4 
A)  0 
B)  1 
C)  2 
D)  3 
E)  4

Question 15

Which of the following bonds is nonpolar?

Accepted Answer

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

Question 16

Electronegativity is a measure of an atom's ability to

Accepted Answer

A)  become an anion. 
B)  ionize. 
C)  draw electrons to itself in a covalent bond. 
D)  accept an electron from a metal. 
E)  donate an electron to a nonmetal. 
A)  become an anion. 
B)  ionize. 
C)  draw electrons to itself in a covalent bond. 
D)  accept an electron from a metal. 
E)  donate an electron to a nonmetal.

Question 17

What is the angle between groups of electrons for an atom that has a tetrahedral electron geometry?

Accepted Answer

A)  90° 
B)  120° 
C)  180° 
D)  109.5° 
E)  360° 
A)  90° 
B)  120° 
C)  180° 
D)  109.5° 
E)  360°

Question 18

Antiestrogens are one type of molecule that can be used to treat breast cancer.Which of the following characteristics should be included in the design of a novel antiestrogen?

Accepted Answer

A)  The molecule should bind to the estrogen receptor on breast cancer cells. 
B)  The molecule should not interfere with the normal role of estrogen. 
C)  The molecule should prevent the activation of genes in breast cancer cells. 
D)  The molecule should not have negative side effects. 
E)  All of the above are design considerations. 
A)  The molecule should bind to the estrogen receptor on breast cancer cells. 
B)  The molecule should not interfere with the normal role of estrogen. 
C)  The molecule should prevent the activation of genes in breast cancer cells. 
D)  The molecule should not have negative side effects. 
E)  All of the above are design considerations.

Question 19

What is the molecular geometry of nitrogen trichloride (NCl3)?

Accepted Answer

A)  trigonal planar 
B)  bent 
C)  trigonal pyramidal. 
D)  nitrogen is tetrahedral 
E)  linear 
A)  trigonal planar 
B)  bent 
C)  trigonal pyramidal. 
D)  nitrogen is tetrahedral 
E)  linear

Question 20

Which element is the MOST electronegative?

Accepted Answer

A)  nitrogen 
B)  carbon 
C)  oxygen 
D)  sulfur 
E)  selenium 
A)  nitrogen 
B)  carbon 
C)  oxygen 
D)  sulfur 
E)  selenium

Which figure BEST illustrates how two molecules of ethanol interact?

What is the electron geometry of the carbon in formaldehyde, shown below?

Which molecule below exhibits the strongest intermolecular forces of attraction?

What is the H-C-H bond angle of each carbon in ethylene (C₂H₄)?

How does VSEPR theory explain the electron group geometry of a molecule?

Electrostatic interactions between positive and negative ions are called _______.

Which element is the MOST electronegative?

Does propane (shown)or octane (C₈H₁₈)exhibit stronger dispersion forces?

How many electron groups do the carbon atoms in ethylene (C₂H₄)have?

What is the molecular geometry of the atoms bonded to oxygen in methanol, shown below?

What is the angle between groups of electrons for an atom that has a linear electron geometry?

Does ethanol have a permanent dipole?

______ is the sharing of electrons between two atoms and is much stronger than intermolecular forces of attraction.

An atom, X, has a tetrahedral electron geometry but a trigonal pyramidal molecular geometry.How many atoms is atom X bonded to?

Which of the following bonds is nonpolar?

Electronegativity is a measure of an atom's ability to

What is the angle between groups of electrons for an atom that has a tetrahedral electron geometry?

Antiestrogens are one type of molecule that can be used to treat breast cancer.Which of the following characteristics should be included in the design of a novel antiestrogen?

What is the molecular geometry of nitrogen trichloride (NCl₃)?

Which element is the MOST electronegative?

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Exam 4: Molecular Geometry, Polarity, and Intermolecular

Which figure BEST illustrates how two molecules of ethanol interact?

What is the electron geometry of the carbon in formaldehyde, shown below?

Which molecule below exhibits the strongest intermolecular forces of attraction?

What is the H-C-H bond angle of each carbon in ethylene (C2H4)?

How does VSEPR theory explain the electron group geometry of a molecule?

Electrostatic interactions between positive and negative ions are called _______.

Which element is the MOST electronegative?

Does propane (shown)or octane (C8H18)exhibit stronger dispersion forces?

How many electron groups do the carbon atoms in ethylene (C2H4)have?

What is the molecular geometry of the atoms bonded to oxygen in methanol, shown below?

What is the angle between groups of electrons for an atom that has a linear electron geometry?

Does ethanol have a permanent dipole?

______ is the sharing of electrons between two atoms and is much stronger than intermolecular forces of attraction.

An atom, X, has a tetrahedral electron geometry but a trigonal pyramidal molecular geometry.How many atoms is atom X bonded to?

Which of the following bonds is nonpolar?

Electronegativity is a measure of an atom's ability to

What is the angle between groups of electrons for an atom that has a tetrahedral electron geometry?

Antiestrogens are one type of molecule that can be used to treat breast cancer.Which of the following characteristics should be included in the design of a novel antiestrogen?

What is the molecular geometry of nitrogen trichloride (NCl3)?

Which element is the MOST electronegative?

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

What is the H-C-H bond angle of each carbon in ethylene (C₂H₄)?

Does propane (shown)or octane (C₈H₁₈)exhibit stronger dispersion forces?

How many electron groups do the carbon atoms in ethylene (C₂H₄)have?

What is the molecular geometry of nitrogen trichloride (NCl₃)?