Question 1

What type of hydrocarbon is the following molecule?

Accepted Answer

A)   alkane
B)   alkene
C)   alkyne
D)   aromatic
E)   cycloalkeneF) A) and D)
G) B) and D)

Question 2

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 3

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 anionF) A) and B)
G) C) and D)

Question 4

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 opticalF) All of the above
G) C) and D)

Question 5

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)   F) A) and B)
G) None of the above

Question 6

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)   octeneF) A) and B)
G) A) and C)

Question 7

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.F) All of the above
G) A) and B)

Question 8

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+2HnF) All of the above
G) A) and C)

Question 9

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 benzeneF) A) and B)
G) C) and E)

Question 10

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)   MethanolF) B) and E)
G) B) and C)

Question 11

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.F) B) and C)
G) A) and E)

Question 12

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)   NaBH4F) B) and C)
G) None of the above

Question 13

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 displacementF) B) and C)
G) A) and C)

Question 14

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...

Question 15

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-difluoroethyleneF) A) and E)
G) A) and C)

Question 16

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)   HCCH + 2Cl2 → CHCl2CHCl2F) C) and D)
G) A) and D)

Question 17

Draw Lewis structures for all possible isomers of C3H6O.

Accepted Answer

Question 18

Which of the following formulas represents an unsaturated hydrocarbon?

Accepted Answer

A)   C2H6
B)   C3H8
C)   C4H10
D)   C6H12
E)   C7H16F) B) and D)
G) C) and D)

Question 19

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

Accepted Answer

A)   ester
B)   ketone
C)   ether
D)   alcohol
E)   carboxylic acidF) C) and D)
G) B) and C)

Question 20

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)   5F) B) and E)
G) A) and D)

Exam 24: Carbon: Not Just Another Element

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

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

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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.

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A saturated hydrocarbon is

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What type of hydrocarbon is the following molecule?

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Which of the following reactions is a substitution reaction?

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

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

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

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

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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?

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

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Draw Lewis structures for all possible isomers of C3H6O.

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

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What are the two types of stereoisomers?

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

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Which of the following formulas represents an unsaturated hydrocarbon?

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What is the name of the following benzene derivative?

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What is the correct systematic name for the following alkene?

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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 ________.

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

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

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

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Draw Lewis structures for all possible isomers of C₃H₆O.

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

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