Question 1

Which of the above molecules is an alcohol?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
E) a and d 
A) a 
B) b 
C) c 
D) d 
E) a and d

Question 2

Would you expect polypropylene to be denser or less dense than low-density polyethylene? Why?

Accepted Answer

A) Polypropylene should be more dense because because it has a greater molecular mass. 
B) Polypropylene should be more dense because its molecules are able to pack more closely together. 
C) Polypropylene should be less dense because its molecules are not able to pack together as tightly. 
D) Polypropylene should be more dense given that the polyethylene is already known to be of low density. 
A) Polypropylene should be more dense because because it has a greater molecular mass. 
B) Polypropylene should be more dense because its molecules are able to pack more closely together. 
C) Polypropylene should be less dense because its molecules are not able to pack together as tightly. 
D) Polypropylene should be more dense given that the polyethylene is already known to be of low density.

Question 3

How many structural isomers are shown here?

Accepted Answer

A) one 
B) two 
C) three 
D) four 
A) one 
B) two 
C) three 
D) four

Question 4

What property of nitrocellulose was exploited in the early production of the photography and movie industry?

Accepted Answer

A) It could be molded and rolled into thin, transparent films. 
B) It could be dissolved easily. 
C) It would leave very little ash when burnt. 
D) It is extremely light sensitive and darkens upon exposure to light. 
E) all of the above 
A) It could be molded and rolled into thin, transparent films. 
B) It could be dissolved easily. 
C) It would leave very little ash when burnt. 
D) It is extremely light sensitive and darkens upon exposure to light. 
E) all of the above

Question 5

Which of the following molecules could be a different conformation of the underlined molecule below?

Accepted Answer

A) a 
B) b 
C) c 
D) all of the above 
E) none of the above 
A) a 
B) b 
C) c 
D) all of the above 
E) none of the above

Question 6

A change in configuration, but not a change in conformation, involves ________.

Accepted Answer

A) a change in spatial orientation 
B) the breaking of a bond 
C) both the breaking and forming of a bond 
D) a change in chemical formula 
A) a change in spatial orientation 
B) the breaking of a bond 
C) both the breaking and forming of a bond 
D) a change in chemical formula

Question 7

Heteroatoms make a difference in the physical and chemical properties of an organic molecule because ________.

Accepted Answer

A) they add extra mass to the hydrocarbon structure 
B) each heteroatom has its own characteristic chemistry 
C) they can enhance the polarity of the organic molecule 
D) all of the above 
A) they add extra mass to the hydrocarbon structure 
B) each heteroatom has its own characteristic chemistry 
C) they can enhance the polarity of the organic molecule 
D) all of the above

Question 8

Which of the following molecules would probably be isolated closest to the bottom of a fractionating tower at a refinery?

Accepted Answer

A) C4H10 
B) C8H18 
C) C10H22 
D) C20H42 
E) C40H82 
A) C4H10 
B) C8H18 
C) C10H22 
D) C20H42 
E) C40H82

Question 9

Which of the above molecules would be acidic?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
E) a or d 
A) a 
B) b 
C) c 
D) d 
E) a or d

Question 10

A common approach to building a complex organic molecule is called ________.

Accepted Answer

A) an elucidation synthesis 
B) a natural products mimick 
C) a retrosynthetic analysis 
D) a C1 to Cn construction 
A) an elucidation synthesis 
B) a natural products mimick 
C) a retrosynthetic analysis 
D) a C1 to Cn construction

Question 11

Which of the following statements best describes the effect of heteroatoms on hydrocarbons?

Accepted Answer

A) Heteroatoms greatly alter the chemical and physical properties of a hydrocarbon. 
B) Heteroatoms have little effect on the chemical and physical properties of a hydrocarbon. 
C) Heteroatoms have very similar properties to hydrocarbons. 
D) The properties of the heteroatom compounds depend only on the atom, not how it is bonded to the hydrocarbon. 
E) none of the above 
A) Heteroatoms greatly alter the chemical and physical properties of a hydrocarbon. 
B) Heteroatoms have little effect on the chemical and physical properties of a hydrocarbon. 
C) Heteroatoms have very similar properties to hydrocarbons. 
D) The properties of the heteroatom compounds depend only on the atom, not how it is bonded to the hydrocarbon. 
E) none of the above

Question 12

Which of the following statements describes structural isomers?

Accepted Answer

A) two or more compounds with the same number and type of atoms but different connectivity 
B) two or more compounds with the same shape 
C) two compounds with the same number of conformations 
D) two or more compounds with different atoms but with the same electronic properties 
E) all of the above 
A) two or more compounds with the same number and type of atoms but different connectivity 
B) two or more compounds with the same shape 
C) two compounds with the same number of conformations 
D) two or more compounds with different atoms but with the same electronic properties 
E) all of the above

Question 13

The compound 6-aminohexanoic acid is used to make the condensation polymer nylon-6. Polymerization is not always successful, however, because of a competing side reaction. What is this side reaction?

Accepted Answer

A) One 6-aminohexanoic acid reacts with another and this reaction is favored in dilute solutions. 
B) One 6-aminohexanoic acid reacts with another and this reaction is favored in concentrated solutions. 
C) One end of the 6-aminohexanoic acid reacts with the other and this reaction is favored in dilute solutions. 
D) One end of the 6-aminohexanoic acid reacts with the other and this reaction is favored in concentrated solutions. 
A) One 6-aminohexanoic acid reacts with another and this reaction is favored in dilute solutions. 
B) One 6-aminohexanoic acid reacts with another and this reaction is favored in concentrated solutions. 
C) One end of the 6-aminohexanoic acid reacts with the other and this reaction is favored in dilute solutions. 
D) One end of the 6-aminohexanoic acid reacts with the other and this reaction is favored in concentrated solutions.

Question 14

Which of the following does not contain a double bond?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
E) All of the above are unsaturated. 
A) a 
B) b 
C) c 
D) d 
E) All of the above are unsaturated.

Question 15

Which of the above structures is 2, 2, 4-trimethylpentane?

Accepted Answer

A) a 
B) b 
C) c 
D) None of the above 
A) a 
B) b 
C) c 
D) None of the above

Question 16

Which two of these four structures are of the same structural isomer?

Accepted Answer

A) upper right and lower left 
B) upper left and lower right 
C) lower left and upper right 
D) lower right and upper right 
A) upper right and lower left 
B) upper left and lower right 
C) lower left and upper right 
D) lower right and upper right

Question 17

The class of organic compounds without a functional group are the ________.

Accepted Answer

A) saturated hydrocarbons 
B) carboyxlic acids 
C) alcohols 
D) esters 
A) saturated hydrocarbons 
B) carboyxlic acids 
C) alcohols 
D) esters

Question 18

How many structural isomers are there for hydrocarbons having the molecular formula C6H14?

Accepted Answer

A) three 
B) four 
C) five 
D) six 
A) three 
B) four 
C) five 
D) six

Question 19

What products are formed upon the reaction of benzoic acid with sodium hydroxide, NaOH?

Accepted Answer

A) benzaldehyde and water 
B) sodium benzoate and water 
C) sodium bicarbonate and benzaldehyde 
D) sodium bicarbonate and sodium benzoate 
A) benzaldehyde and water 
B) sodium benzoate and water 
C) sodium bicarbonate and benzaldehyde 
D) sodium bicarbonate and sodium benzoate

Question 20

What was the first polymer that was synthesized (i.e., not a derivative of a natural polymer)?

Accepted Answer

A) bakelite 
B) nylon 
C) rayon 
D) celluloid 
E) rubber 
A) bakelite 
B) nylon 
C) rayon 
D) celluloid 
E) rubber

Which of the above molecules is an alcohol?

Would you expect polypropylene to be denser or less dense than low-density polyethylene? Why?

How many structural isomers are shown here?

What property of nitrocellulose was exploited in the early production of the photography and movie industry?

Which of the following molecules could be a different conformation of the underlined molecule below?

A change in configuration, but not a change in conformation, involves ________.

Heteroatoms make a difference in the physical and chemical properties of an organic molecule because ________.

Which of the following molecules would probably be isolated closest to the bottom of a fractionating tower at a refinery?

Which of the above molecules would be acidic?

A common approach to building a complex organic molecule is called ________.

Which of the following statements best describes the effect of heteroatoms on hydrocarbons?

Which of the following statements describes structural isomers?

The compound 6-aminohexanoic acid is used to make the condensation polymer nylon-6. Polymerization is not always successful, however, because of a competing side reaction. What is this side reaction?

Which of the following does not contain a double bond?

Which of the above structures is 2, 2, 4-trimethylpentane?

Which two of these four structures are of the same structural isomer?

The class of organic compounds without a functional group are the ________.

How many structural isomers are there for hydrocarbons having the molecular formula C₆H₁₄?

What products are formed upon the reaction of benzoic acid with sodium hydroxide, NaOH?

What was the first polymer that was synthesized (i.e., not a derivative of a natural polymer)?

About Science

Particles of Matter

Elements of Chemistry

Subatomic Particles

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Acids and Bases in Our Environment

Oxidations and Reductions Charge the World

Nutrients of Life

Medicinal Chemistry

Optimizing Food Production

Protection Water and Air Resources

Capturing Energy

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Exam 12: Organic Compounds

Which of the above molecules is an alcohol?

Would you expect polypropylene to be denser or less dense than low-density polyethylene? Why?

How many structural isomers are shown here?

What property of nitrocellulose was exploited in the early production of the photography and movie industry?

Which of the following molecules could be a different conformation of the underlined molecule below?

A change in configuration, but not a change in conformation, involves ________.

Heteroatoms make a difference in the physical and chemical properties of an organic molecule because ________.

Which of the following molecules would probably be isolated closest to the bottom of a fractionating tower at a refinery?

Which of the above molecules would be acidic?

A common approach to building a complex organic molecule is called ________.

Which of the following statements best describes the effect of heteroatoms on hydrocarbons?

Which of the following statements describes structural isomers?

The compound 6-aminohexanoic acid is used to make the condensation polymer nylon-6. Polymerization is not always successful, however, because of a competing side reaction. What is this side reaction?

Which of the following does not contain a double bond?

Which of the above structures is 2, 2, 4-trimethylpentane?

Which two of these four structures are of the same structural isomer?

The class of organic compounds without a functional group are the ________.

How many structural isomers are there for hydrocarbons having the molecular formula C6H14?

What products are formed upon the reaction of benzoic acid with sodium hydroxide, NaOH?

What was the first polymer that was synthesized (i.e., not a derivative of a natural polymer)?

About Science

Particles of Matter

Elements of Chemistry

Subatomic Particles

The Atomic Nucleus

How Atoms Bond

How Molecules Mix

How Water Behaves

How Chemicals React

Acids and Bases in Our Environment

Oxidations and Reductions Charge the World

Nutrients of Life

Medicinal Chemistry

Optimizing Food Production

Protection Water and Air Resources

Capturing Energy

Filters

How many structural isomers are there for hydrocarbons having the molecular formula C₆H₁₄?