Question 1

What is the most specific name for the C6H5- group?

Accepted Answer

A)  vinyl 
B)  arenyl 
C)  phenol 
D)  phenyl 
A)  vinyl 
B)  arenyl 
C)  phenol 
D)  phenyl

Question 2

Which of the following compounds with the molecular formula C6H12 does not have cis and trans isomers?

Accepted Answer

A)  4-methyl-2-pentene 
B)  2-methyl-1-pentene 
C)  3-methyl-2-pentene 
D)  None, they all have cis isomers. 
A)  4-methyl-2-pentene 
B)  2-methyl-1-pentene 
C)  3-methyl-2-pentene 
D)  None, they all have cis isomers.

Question 3

Which of the following monomers can be used to prepare the given polymer?

Accepted Answer

A)  trans-1-bromopropene 
B)  2-bromopropene 
C)  both trans-1-bromopropene and 2-bromopropene 
D)  neither trans-1-bromopropene nor 2-bromopropene 
A)  trans-1-bromopropene 
B)  2-bromopropene 
C)  both trans-1-bromopropene and 2-bromopropene 
D)  neither trans-1-bromopropene nor 2-bromopropene

Question 4

Which of the following is a characteristic of alkynes?

Accepted Answer

A)  the presence of one or more carbon-carbon double bonds 
B)  the presence of one or more carbon-carbon triple bonds 
C)  the presence of cis-trans isomers 
D)  the presence of a ring system 
A)  the presence of one or more carbon-carbon double bonds 
B)  the presence of one or more carbon-carbon triple bonds 
C)  the presence of cis-trans isomers 
D)  the presence of a ring system

Question 5

Which of the following is true of ethylene and acetylene?

Accepted Answer

A)  Ethylene contains more carbon atoms than acetylene does. 
B)  Ethylene has a carbon-carbon double bond, and acetylene has a carbon-carbon triple bond. 
C)  Ethylene and acetylene are the IUPAC names of two-carbon compounds. 
D)  Ethylene and acetylene belong to a single class of compounds called alkenes. 
A)  Ethylene contains more carbon atoms than acetylene does. 
B)  Ethylene has a carbon-carbon double bond, and acetylene has a carbon-carbon triple bond. 
C)  Ethylene and acetylene are the IUPAC names of two-carbon compounds. 
D)  Ethylene and acetylene belong to a single class of compounds called alkenes.

Question 6

Which reagent is used to convert nitrobenzene to aniline?

Accepted Answer

A)  H2 in the presence of a Ni catalyst 
B)  Sulfuric acid in the presence of peroxide 
C)  Nitric acid in the presence of sulfuric acid 
D)  Ni in the presence of sulfuric acid 
A)  H2 in the presence of a Ni catalyst 
B)  Sulfuric acid in the presence of peroxide 
C)  Nitric acid in the presence of sulfuric acid 
D)  Ni in the presence of sulfuric acid

Question 7

A compound contains a benzene ring with two substituents at positions 1 and 4. Which of the following is the correct locator used to denote the substituents of this compound?

Accepted Answer

A)  ortho 
B)  meta 
C)  para 
D)  hexa 
A)  ortho 
B)  meta 
C)  para 
D)  hexa

Question 8

Examine the following reaction.   Which of the following describes this reaction?

Accepted Answer

A)  It involves a secondary carbocation. 
B)  A represents the nucleophile. 
C)  B represents the electrophile. 
D)  It involves the formation of a new carbon-carbon bond. 
E)  All of these are correct. 
A)  It involves a secondary carbocation. 
B)  A represents the nucleophile. 
C)  B represents the electrophile. 
D)  It involves the formation of a new carbon-carbon bond. 
E)  All of these are correct.

Question 9

Which of the following compounds is found in the oil of poison ivy?

Accepted Answer

A)  capsaicin 
B)  hydroxyquinone 
C)  thymol 
D)  urushiol 
A)  capsaicin 
B)  hydroxyquinone 
C)  thymol 
D)  urushiol

Question 10

Which of the following statements is true of the resonance hybrid of benzene?

Accepted Answer

A)  It equilibrates among the electron configurations of various contributing structures. 
B)  Its molecular formula is different from the Lewis contributing structures. 
C)  It has carbon-carbon bond lengths that are intermediate between a single bond and a double bond. 
D)  It is less stable than the Lewis contributing structures. 
A)  It equilibrates among the electron configurations of various contributing structures. 
B)  Its molecular formula is different from the Lewis contributing structures. 
C)  It has carbon-carbon bond lengths that are intermediate between a single bond and a double bond. 
D)  It is less stable than the Lewis contributing structures.

Question 11

Which of the following is true of the six atoms in ethylene?

Accepted Answer

A)  The hydrogens on either side of the carbon-carbon double bond lie in different planes. 
B)  The carbon and hydrogen atoms lie in the same plane. 
C)  The carbon and hydrogen atoms bond to form a tetrahedral molecule. 
D)  The two carbon atoms lie in one plane, and the four hydrogen atoms lie in another plane. 
A)  The hydrogens on either side of the carbon-carbon double bond lie in different planes. 
B)  The carbon and hydrogen atoms lie in the same plane. 
C)  The carbon and hydrogen atoms bond to form a tetrahedral molecule. 
D)  The two carbon atoms lie in one plane, and the four hydrogen atoms lie in another plane.

Question 12

Which of the following is the most common method used to manufacture ethylene?

Accepted Answer

A)  the polymerization of hydrocarbons 
B)  the thermal cracking of hydrocarbons 
C)  the condensation of hydrocarbons 
D)  the biological degradation of hydrocarbons 
A)  the polymerization of hydrocarbons 
B)  the thermal cracking of hydrocarbons 
C)  the condensation of hydrocarbons 
D)  the biological degradation of hydrocarbons

Question 13

Which of the following is used as the notation for the repeating unit of polypropylene?

Accepted Answer

A)    
B)    
C)    
D)  none of these 
A)    
B)    
C)    
D)  none of these

Question 14

In a phenol, which group is the substituent on the benzene ring?

Accepted Answer

A)  amino 
B)  carbonyl 
C)  carboxyl 
D)  hydroxyl 
A)  amino 
B)  carbonyl 
C)  carboxyl 
D)  hydroxyl

Question 15

Which product is formed by the chlorination of 2-butene?

Accepted Answer

A)  2-chlorobutane 
B)  2,2-dichlorobutane 
C)  2,3-dichlorobutane 
D)  1,2-dichlorobutane 
A)  2-chlorobutane 
B)  2,2-dichlorobutane 
C)  2,3-dichlorobutane 
D)  1,2-dichlorobutane

Question 16

How many constitutional isomers are possible when there are three identical substituents on a benzene ring?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
A)  2 
B)  3 
C)  4 
D)  5

Question 17

Which of the following alkenes undergoes acid-catalyzed hydration to give 1-methylcyclopentanol?

Accepted Answer

A)    
B)    
C)    
D)  none of these 
A)    
B)    
C)    
D)  none of these

Question 18

Identify the similarity between the following two molecules.

Accepted Answer

A)  Both are cis isomers. 
B)  Both have the same boiling point. 
C)  Both have the same melting point. 
D)  Both undergo hydrogenation reactions. 
A)  Both are cis isomers. 
B)  Both have the same boiling point. 
C)  Both have the same melting point. 
D)  Both undergo hydrogenation reactions.

Question 19

By which of the following reactions is polyethylene formed?

Accepted Answer

A)  chain-growth polymerization 
B)  hydrohalogenation 
C)  oxidative polymerization 
D)  thermal cracking 
A)  chain-growth polymerization 
B)  hydrohalogenation 
C)  oxidative polymerization 
D)  thermal cracking

Question 20

Why is HDPE stronger than LDPE?

Accepted Answer

A)  because HDPE possesses aromatic rings unlike LDPE 
B)  because HDPE has an -O-O- bond unlike LDPE 
C)  because HDPE possesses a cyclic structure, whereas LDPE possesses chain structure 
D)  because HDPE has less chain branching than LDPE 
A)  because HDPE possesses aromatic rings unlike LDPE 
B)  because HDPE has an -O-O- bond unlike LDPE 
C)  because HDPE possesses a cyclic structure, whereas LDPE possesses chain structure 
D)  because HDPE has less chain branching than LDPE

Exam 12: Alkenes, Alkynes, and Aromatic Compounds

What is the most specific name for the C6H5- group?

Which of the following compounds with the molecular formula C6H12 does not have cis and trans isomers?

Which of the following monomers can be used to prepare the given polymer?

Which of the following is a characteristic of alkynes?

Which of the following is true of ethylene and acetylene?

Which reagent is used to convert nitrobenzene to aniline?

A compound contains a benzene ring with two substituents at positions 1 and 4. Which of the following is the correct locator used to denote the substituents of this compound?

Examine the following reaction. Which of the following describes this reaction?

Which of the following compounds is found in the oil of poison ivy?

Which of the following statements is true of the resonance hybrid of benzene?

Which of the following is true of the six atoms in ethylene?

Which of the following is the most common method used to manufacture ethylene?

Which of the following is used as the notation for the repeating unit of polypropylene?

In a phenol, which group is the substituent on the benzene ring?

Which product is formed by the chlorination of 2-butene?

How many constitutional isomers are possible when there are three identical substituents on a benzene ring?

Which of the following alkenes undergoes acid-catalyzed hydration to give 1-methylcyclopentanol?

Identify the similarity between the following two molecules.

By which of the following reactions is polyethylene formed?

Why is HDPE stronger than LDPE?

Matter, Energy, and Measurement

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters

What is the most specific name for the C₆H₅- group?

Which of the following compounds with the molecular formula C₆H₁₂ does not have cis and trans isomers?