Question 1

What are the locator number(s)and substituent name(s)for this branched-chain hydrocarbon?

Accepted Answer

A)  3-methyl 
B)  2-ethyl 
C)  1-ethyl-1-methyl 
D)  5-ethyl 
E)  5-methyl 
A)  3-methyl 
B)  2-ethyl 
C)  1-ethyl-1-methyl 
D)  5-ethyl 
E)  5-methyl

Question 2

Which terms from this list BEST describe the following compound? I.Alkane
II.Alkene
III.Alkyne
IV.Aromatic
V.Saturated hydrocarbon
VI.Unsaturated hydrocarbon

Accepted Answer

A)  I and V 
B)  II and VI 
C)  III and VI 
D)  II and V 
E)  III and V 
A)  I and V 
B)  II and VI 
C)  III and VI 
D)  II and V 
E)  III and V

Question 3

Which of the following structures is a branched-chain hydrocarbon?

Accepted Answer

A)  I only 
B)  II only 
C)  III only 
D)  I and II 
E)  II and III 
A)  I only 
B)  II only 
C)  III only 
D)  I and II 
E)  II and III

Question 4

Which of the molecules below are structural isomers?

Accepted Answer

A)  I and II 
B)  I and IV 
C)  I, III, and IV 
D)  I and III 
E)  All of these are structural isomers. 
A)  I and II 
B)  I and IV 
C)  I, III, and IV 
D)  I and III 
E)  All of these are structural isomers.

Question 5

Which of these structures below have the same physical properties?

Accepted Answer

A)  I and II 
B)  I and IV 
C)  I, III, and IV 
D)  I and III 
E)  All of these have the same physical properties. 
A)  I and II 
B)  I and IV 
C)  I, III, and IV 
D)  I and III 
E)  All of these have the same physical properties.

Question 6

What is the IUPAC name of the following branched-chain hydrocarbon?

Accepted Answer

A)  trans-4-methyl-4-methyl-2-pentene 
B)  cis-2-methyl-2-methyl-3-pentene 
C)  cis-4,4-dimethyl-2-pentene 
D)  trans-2,2-dimethyl-3-pentene 
E)  cis-4,4,4-trimethyl-2-propene 
A)  trans-4-methyl-4-methyl-2-pentene 
B)  cis-2-methyl-2-methyl-3-pentene 
C)  cis-4,4-dimethyl-2-pentene 
D)  trans-2,2-dimethyl-3-pentene 
E)  cis-4,4,4-trimethyl-2-propene

Question 7

Are the following two molecules structural isomers?

Accepted Answer

A)  No, because they do not have the same molecular formula. 
B)  Yes, because they have the same molecular formula but different structures. 
C)  Yes, because they have the same number of carbons. 
D)  Yes, because they do not have the same molecular formula. 
E)  No, because only one is branched. 
A)  No, because they do not have the same molecular formula. 
B)  Yes, because they have the same molecular formula but different structures. 
C)  Yes, because they have the same number of carbons. 
D)  Yes, because they do not have the same molecular formula. 
E)  No, because only one is branched.

Question 8

In which of the following statements is the hydrocarbon correctly described by its bonding to carbon?

Accepted Answer

A)  alkyne: three single bonds and one triple bond 
B)  alkane: three, four or five single bonds 
C)  alkene: one double bond and two single bonds 
D)  alkyne: one single bond and three triple bonds 
E)  aromatic: two single bonds and two double bonds 
A)  alkyne: three single bonds and one triple bond 
B)  alkane: three, four or five single bonds 
C)  alkene: one double bond and two single bonds 
D)  alkyne: one single bond and three triple bonds 
E)  aromatic: two single bonds and two double bonds

Question 9

What are the locator number(s)and substituent name(s)for this branched-chain hydrocarbon?

Accepted Answer

A)  3-methyl 
B)  2-ethyl 
C)  1-ethyl-1-methyl 
D)  5-ethyl 
E)  5-methyl 
A)  3-methyl 
B)  2-ethyl 
C)  1-ethyl-1-methyl 
D)  5-ethyl 
E)  5-methyl

Question 10

Which of these fats is liquid at room temperature?

Accepted Answer

A)  Neither, both are waxy solids. 
B)  A only 
C)  B only 
D)  A and B 
E)  These structures are not fats. 
A)  Neither, both are waxy solids. 
B)  A only 
C)  B only 
D)  A and B 
E)  These structures are not fats.

Question 11

Which skeletal line structure best represents 2-butyne?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 12

Which statement BEST describes the relationship between the following two structures?

Accepted Answer

A)  They are identical molecules in the same conformation. 
B)  They have different molecular formulas. 
C)  They are isomers. 
D)  They are different conformations of the same molecule. 
E)  One is saturated, and the other is unsaturated. 
A)  They are identical molecules in the same conformation. 
B)  They have different molecular formulas. 
C)  They are isomers. 
D)  They are different conformations of the same molecule. 
E)  One is saturated, and the other is unsaturated.

Question 13

Which statement BEST describes alkanes?

Accepted Answer

A)  They are hydrocarbons. 
B)  They contain only C-C and C-H single bonds. 
C)  They take on a regular zigzag shape. 
D)  They are hydrophobic. 
E)  All of the above describes alkanes. 
A)  They are hydrocarbons. 
B)  They contain only C-C and C-H single bonds. 
C)  They take on a regular zigzag shape. 
D)  They are hydrophobic. 
E)  All of the above describes alkanes.

Question 14

Which structure is nonane?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 15

What is the IUPAC name of the following molecule?

Accepted Answer

A)  methylcyclopentane 
B)  2-cyclohexane 
C)  cyclohexane 
D)  ethylcyclobutane 
E)  1-ethylcyclobutane 
A)  methylcyclopentane 
B)  2-cyclohexane 
C)  cyclohexane 
D)  ethylcyclobutane 
E)  1-ethylcyclobutane

Question 16

How many hydrogens are bonded to the carbons with the arrows pointing to them?

Accepted Answer

A)  carbon 1: 0 carbon 2: 0 
B)  carbon 1: 0 carbon 2: 2 
C)  carbon 1: 1 carbon 2: 2 
D)  carbon 1: 4 carbon 2: 4 
E)  It is not possible to tell given the skeletal line structure. 
A)  carbon 1: 0 carbon 2: 0 
B)  carbon 1: 0 carbon 2: 2 
C)  carbon 1: 1 carbon 2: 2 
D)  carbon 1: 4 carbon 2: 4 
E)  It is not possible to tell given the skeletal line structure.

Question 17

Benzene is not classified as an alkene.Why?

Accepted Answer

A)  It does not have 120° bond angles. 
B)  It actually contains three double bonds, not just one. 
C)  It is flat. 
D)  It is more stable and unreactive than an alkene. 
E)  Actually, benzene is classified as an alkene. 
A)  It does not have 120° bond angles. 
B)  It actually contains three double bonds, not just one. 
C)  It is flat. 
D)  It is more stable and unreactive than an alkene. 
E)  Actually, benzene is classified as an alkene.

Question 18

Hydrocarbons are _______ and interact only through _________ forces.

Accepted Answer

A)  Polar; dipole-dipole 
B)  Polar; hydrogen bonding 
C)  Polar; dispersion 
D)  Nonpolar; dispersion 
E)  Nonpolar; dipole-dipole 
A)  Polar; dipole-dipole 
B)  Polar; hydrogen bonding 
C)  Polar; dispersion 
D)  Nonpolar; dispersion 
E)  Nonpolar; dipole-dipole

Question 19

What is the molecular formula of cyclobutane?

Accepted Answer

A)  C3H6 
B)  C3H8 
C)  C4H10 
D)  C4H8 
E)  C6H14 
A)  C3H6 
B)  C3H8 
C)  C4H10 
D)  C4H8 
E)  C6H14

Question 20

Which of the following is NOT a goal of naming in the IUPAC system?

Accepted Answer

A)  Each structure should have one name. 
B)  Each name should represent one structure. 
C)  It should be possible to draw a chemical structure given the name. 
D)  It should be possible to name any given structure. 
E)  The name should indicate something about the purpose of the molecule. 
A)  Each structure should have one name. 
B)  Each name should represent one structure. 
C)  It should be possible to draw a chemical structure given the name. 
D)  It should be possible to name any given structure. 
E)  The name should indicate something about the purpose of the molecule.

What are the locator number(s)and substituent name(s)for this branched-chain hydrocarbon?

Which terms from this list BEST describe the following compound? I.Alkane II.Alkene III.Alkyne IV.Aromatic V.Saturated hydrocarbon VI.Unsaturated hydrocarbon

Which of the following structures is a branched-chain hydrocarbon?

Which of the molecules below are structural isomers?

Which of these structures below have the same physical properties?

What is the IUPAC name of the following branched-chain hydrocarbon?

Are the following two molecules structural isomers?

In which of the following statements is the hydrocarbon correctly described by its bonding to carbon?

What are the locator number(s)and substituent name(s)for this branched-chain hydrocarbon?

Which of these fats is liquid at room temperature?

Which skeletal line structure best represents 2-butyne?

Which statement BEST describes the relationship between the following two structures?

Which statement BEST describes alkanes?

Which structure is nonane?

What is the IUPAC name of the following molecule?

How many hydrogens are bonded to the carbons with the arrows pointing to them?

Benzene is not classified as an alkene.Why?

Hydrocarbons are _ and interact only through ___ forces.

What is the molecular formula of cyclobutane?

Which of the following is NOT a goal of naming in the IUPAC system?

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

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

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 10: Introduction to Organic Chemistry:

What are the locator number(s)and substituent name(s)for this branched-chain hydrocarbon?

Which terms from this list BEST describe the following compound? I.Alkane II.Alkene III.Alkyne IV.Aromatic V.Saturated hydrocarbon VI.Unsaturated hydrocarbon

Which of the following structures is a branched-chain hydrocarbon?

Which of the molecules below are structural isomers?

Which of these structures below have the same physical properties?

What is the IUPAC name of the following branched-chain hydrocarbon?

Are the following two molecules structural isomers?

In which of the following statements is the hydrocarbon correctly described by its bonding to carbon?

What are the locator number(s)and substituent name(s)for this branched-chain hydrocarbon?

Which of these fats is liquid at room temperature?

Which skeletal line structure best represents 2-butyne?

Which statement BEST describes the relationship between the following two structures?

Which statement BEST describes alkanes?

Which structure is nonane?

What is the IUPAC name of the following molecule?

How many hydrogens are bonded to the carbons with the arrows pointing to them?

Benzene is not classified as an alkene.Why?

Hydrocarbons are _______ and interact only through _________ forces.

What is the molecular formula of cyclobutane?

Which of the following is NOT a goal of naming in the IUPAC system?

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

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

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

Hydrocarbons are _ and interact only through ___ forces.