Question 1

The addition of Br2 is used as the reaction to distinguish between alkanes and alkenes. What is the observation that accompanies this test?

Accepted Answer

A)  A bright red color is produced when Br2 reacts with an alkene. 
B)  Bromine dissolves in alkanes but not in alkenes. 
C)  Bromine is a dark red liquid. When it adds to the double bond of an alkene to make the dibromide, it becomes colorless. 
D)  The red color of bromine disappears when it dissolves in alkanes. 
E)  Bromine reacts with alkanes to form a precipitate. 
A)  A bright red color is produced when Br2 reacts with an alkene. 
B)  Bromine dissolves in alkanes but not in alkenes. 
C)  Bromine is a dark red liquid. When it adds to the double bond of an alkene to make the dibromide, it becomes colorless. 
D)  The red color of bromine disappears when it dissolves in alkanes. 
E)  Bromine reacts with alkanes to form a precipitate.

Question 2

Which of the following alcohols is least likely to be soluble in water?

Accepted Answer

A)  3-pentanol 
B)  2-butanol 
C)  1,2-ethanediol 
D)  1,2,3-propanetriol 
E)  Methanol 
A)  3-pentanol 
B)  2-butanol 
C)  1,2-ethanediol 
D)  1,2,3-propanetriol 
E)  Methanol

Question 3

In vulcanized rubber, the polymer chains of natural rubber are cross-linked with sulfur atoms. The polymer chains stretch when stressed, but they return to their original shape when the stress is removed. Substances that behave this way are called ________.

Accepted Answer

The answer of In vulcanized rubber, the polymer chains of...

Question 4

What are the products of a condensation reaction between a primary amine and a carboxylic acid?

Accepted Answer

A)  water and an amide 
B)  water and an ester 
C)  ammonia and an amide 
D)  ammonia and an ester 
E)  an ammonium cation and a carboxylate anion 
A)  water and an amide 
B)  water and an ester 
C)  ammonia and an amide 
D)  ammonia and an ester 
E)  an ammonium cation and a carboxylate anion

Question 5

Which of the following is the general formula of an alkane?

Accepted Answer

A)  CnH2n+2 
B)  C2nH2n-2 
C)  CnHn 
D)  CnH2n 
E)  Cn+2Hn 
A)  CnH2n+2 
B)  C2nH2n-2 
C)  CnHn 
D)  CnH2n 
E)  Cn+2Hn

Question 6

Which of the following is the product of the addition of excess F2 to acetylene?

Accepted Answer

A)  1,2-difluoroethane 
B)  Ethylene 
C)  1,1,2,2-tetrafluoroethane 
D)  Ethane 
E)  1,1-difluoroethylene 
A)  1,2-difluoroethane 
B)  Ethylene 
C)  1,1,2,2-tetrafluoroethane 
D)  Ethane 
E)  1,1-difluoroethylene

Question 7

How many structural isomers possessing the alcohol functional group have the molecular formula C3H8O?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 8

Which of the following compounds might be used to reduce a carboxylic acid to an aldehyde?

Accepted Answer

A)  H+ 
B)  Cl2 
C)  K2Cr2O7 
D)  KMnO4 
E)  NaBH4 
A)  H+ 
B)  Cl2 
C)  K2Cr2O7 
D)  KMnO4 
E)  NaBH4

Question 9

What is the correct systematic name for the following alkene?

Accepted Answer

A)  2-ethyl-3-methyl-2-hexene 
B)  2-ethyl-3-methyl-1-pentene 
C)  4-ethyl-3-methyl-4-pentene 
D)  3-methyl-4-ethyl-4-pentene 
E)  octene 
A)  2-ethyl-3-methyl-2-hexene 
B)  2-ethyl-3-methyl-1-pentene 
C)  4-ethyl-3-methyl-4-pentene 
D)  3-methyl-4-ethyl-4-pentene 
E)  octene

Question 10

The reaction of 1-propanol with K2Cr2O7 in acidic solution to produce propanal is what kind of reaction?

Accepted Answer

A)  polymerization 
B)  combustion 
C)  oxidation 
D)  reduction 
E)  double displacement 
A)  polymerization 
B)  combustion 
C)  oxidation 
D)  reduction 
E)  double displacement

Question 11

Which of the following reactions is a substitution reaction?

Accepted Answer

A)  C6H6 + Cl2 → C6H5Cl + HCl 
B)  CH2=CH2 + Cl2 → CH2ClCH2Cl 
C)  CH2=CH2 + HCl → CH3CH2Cl 
D)  CH2=CH2 + H2 → CH3CH3 
E)  HC
CH + 2Cl2 → CHCl2CHCl2 
A)  C6H6 + Cl2 → C6H5Cl + HCl 
B)  CH2=CH2 + Cl2 → CH2ClCH2Cl 
C)  CH2=CH2 + HCl → CH3CH2Cl 
D)  CH2=CH2 + H2 → CH3CH3 
E)  HC
CH + 2Cl2 → CHCl2CHCl2

Question 12

Draw Lewis structures for all possible isomers of C3H6O.

Accepted Answer

Question 13

When an aldehyde is oxidized, the product is a(n) ____.

Accepted Answer

A)  ester 
B)  ketone 
C)  ether 
D)  alcohol 
E)  carboxylic acid 
A)  ester 
B)  ketone 
C)  ether 
D)  alcohol 
E)  carboxylic acid

Question 14

What is the name of the following benzene derivative?

Accepted Answer

A)  1-chlorobenzoic acid 
B)  5-chloroanaline 
C)  1-acetate-1-chlorobenzene 
D)  5-chlorobenzoic acid 
E)  1,3-chlorocarboxylic benzene 
A)  1-chlorobenzoic acid 
B)  5-chloroanaline 
C)  1-acetate-1-chlorobenzene 
D)  5-chlorobenzoic acid 
E)  1,3-chlorocarboxylic benzene

Question 15

What are the two types of stereoisomers?

Accepted Answer

A)  geometrical and optical 
B)  optical and positional 
C)  geometrical and positional 
D)  geometrical and functional group 
E)  chiral and optical 
A)  geometrical and optical 
B)  optical and positional 
C)  geometrical and positional 
D)  geometrical and functional group 
E)  chiral and optical

Question 16

What type of hydrocarbon is the following molecule?

Accepted Answer

A)  alkane 
B)  alkene 
C)  alkyne 
D)  aromatic 
E)  cycloalkene 
A)  alkane 
B)  alkene 
C)  alkyne 
D)  aromatic 
E)  cycloalkene

Question 17

Which of the following formulas represents an unsaturated hydrocarbon?

Accepted Answer

A)  C2H6 
B)  C3H8 
C)  C4H10 
D)  C6H12 
E)  C7H16 
A)  C2H6 
B)  C3H8 
C)  C4H10 
D)  C6H12 
E)  C7H16

Question 18

A mixture of ethanol and benzoic acid is heated in the presence of an acid. Which of the following is the primary product of this reaction?

Accepted Answer

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

Question 19

A saturated hydrocarbon is

Accepted Answer

A)  a hydrocarbon that contains oxygen. 
B)  a compound in which all carbon atoms have four single bonds. 
C)  a compound in which one or more carbon atoms have double or triple bonds. 
D)  a hydrocarbon that is dissolved in water. 
E)  a cycloalkane with five or more carbons. 
A)  a hydrocarbon that contains oxygen. 
B)  a compound in which all carbon atoms have four single bonds. 
C)  a compound in which one or more carbon atoms have double or triple bonds. 
D)  a hydrocarbon that is dissolved in water. 
E)  a cycloalkane with five or more carbons.

Question 20

A peptide bond is the amide linkage that is formed in a condensation reaction involving the __________ group of one amino acid with the carboxylic acid group of a second amino acid.

Accepted Answer

The answer of A peptide bond is the amide linkage...

Exam 24: Carbon: Not Just Another Element

The addition of Br2 is used as the reaction to distinguish between alkanes and alkenes. What is the observation that accompanies this test?

Which of the following alcohols is least likely to be soluble in water?

In vulcanized rubber, the polymer chains of natural rubber are cross-linked with sulfur atoms. The polymer chains stretch when stressed, but they return to their original shape when the stress is removed. Substances that behave this way are called ________.

What are the products of a condensation reaction between a primary amine and a carboxylic acid?

Which of the following is the general formula of an alkane?

Which of the following is the product of the addition of excess F2 to acetylene?

How many structural isomers possessing the alcohol functional group have the molecular formula C3H8O?

Which of the following compounds might be used to reduce a carboxylic acid to an aldehyde?

What is the correct systematic name for the following alkene?

The reaction of 1-propanol with K2Cr2O7 in acidic solution to produce propanal is what kind of reaction?

Which of the following reactions is a substitution reaction?

Draw Lewis structures for all possible isomers of C3H6O.

When an aldehyde is oxidized, the product is a(n) ____.

What is the name of the following benzene derivative?

What are the two types of stereoisomers?

What type of hydrocarbon is the following molecule?

Which of the following formulas represents an unsaturated hydrocarbon?

A mixture of ethanol and benzoic acid is heated in the presence of an acid. Which of the following is the primary product of this reaction?

A saturated hydrocarbon is

A peptide bond is the amide linkage that is formed in a condensation reaction involving the __________ group of one amino acid with the carboxylic acid group of a second amino acid.

Basic Concepts of Chemistry

Lets Review: the Tools of Quantitative Chemistry

Atoms, Molecules, and Ions

Chemical Reactions

Stoichiometry: Quantitative Information About Chemical Reactions

Principles of Chemical Reactivity: Energy and Chemical Reactions

The Structure of Atoms

The Structure of Atoms and Periodic Trends

Bonding and Molecular Structure

Bonding and Molecular Structure Orbital Hybridization and Molecular Orbitals

Gases and Their Properties

Intermolecular Forces and Liquids

The Solid State

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Chemical Reactivity: Equilibria

Principles of Chemical Reactivity: the Chemistry of Acids and Bases

Principles of Chemical Reactivity: Other Aspects of Aqueous Equilibria

Principles of Chemical Reactivity: Entropy and Free Energy

Principles of Chemical Reactivity: Electron Transfer Reactions

Environmental Chemistry: Earths Environment, Energy, and Sustainability

The Chemistry of the Main Group Elements

The Chemistry of the Transition Elements

Biochemistry

Nuclear Chemistry

Filters

The addition of Br₂ is used as the reaction to distinguish between alkanes and alkenes. What is the observation that accompanies this test?

Which of the following is the product of the addition of excess F₂ to acetylene?

How many structural isomers possessing the alcohol functional group have the molecular formula C₃H₈O?

The reaction of 1-propanol with K₂Cr₂O₇ in acidic solution to produce propanal is what kind of reaction?

Draw Lewis structures for all possible isomers of C₃H₆O.