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Bakelite is formed by the acid-catalyzed polymerization of phenol with formaldehyde.What is (are) the product(s) of the first step in this polymerization, shown below? (Note: in the answers below the hydroxymethyl group is -CH2OH.) Bakelite is formed by the acid-catalyzed polymerization of phenol with formaldehyde.What is (are) the product(s) of the first step in this polymerization, shown below? (Note: in the answers below the hydroxymethyl group is -CH<sub>2</sub>OH.) A) Ortho and para-hydroxybenzaldehyde B) Meta-hydroxybenzaldehyde C) Ortho and para-(hydroxymethyl) phenol D) Meta-(hydroxymethyl) phenol


A) Ortho and para-hydroxybenzaldehyde
B) Meta-hydroxybenzaldehyde
C) Ortho and para-(hydroxymethyl) phenol
D) Meta-(hydroxymethyl) phenol

E) C) and D)
F) B) and D)

Correct Answer

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Which of the following is the repeating unit in polyvinyl chloride (PVC) ? Which of the following is the repeating unit in polyvinyl chloride (PVC) ? A) A B) B C) C D) D


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

E) A) and C)
F) All of the above

Correct Answer

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Which of the following is used to make Teflon?


A) Fluoroethene
B) 1,1,4,4-Tetrafluorobutadiene
C) 1,2-Difluoroethene
D) Tetrafluoroethylene

E) B) and D)
F) B) and C)

Correct Answer

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Which of the following sets of products results if nylon 66 is treated with sulfuric acid? Which of the following sets of products results if nylon 66 is treated with sulfuric acid? A) A B) B C) C D) D


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

E) A) and B)
F) A) and C)

Correct Answer

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Which of the following is (are) repeating unit(s) of step-growth polymers? Which of the following is (are) repeating unit(s) of step-growth polymers? A) Only I B) Only II C) Only III D) I and II


A) Only I
B) Only II
C) Only III
D) I and II

E) None of the above
F) B) and D)

Correct Answer

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Which of the following is the repeating unit of the polymer formed in the polymerization of p-hydroxybenzoic acid? Which of the following is the repeating unit of the polymer formed in the polymerization of p-hydroxybenzoic acid? A) A B) B C) C D) D


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

E) None of the above
F) A) and D)

Correct Answer

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What is the name given to polymers with single monomers?


A) Homopolymers
B) Copolymers
C) Block polymers
D) Random polymers

E) A) and D)
F) All of the above

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The repeating unit of poly(methyl methacrylate) is shown below.Which one of the following is the monomer used to make poly(methyl methacrylate) ? The repeating unit of poly(methyl methacrylate) is shown below.Which one of the following is the monomer used to make poly(methyl methacrylate) ? A) A B) B C) C D) D


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

E) A) and B)
F) B) and C)

Correct Answer

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The monomer used to make superglue is shown below.Which of the following methods of polymerization is most suitable for this type of monomer? The monomer used to make superglue is shown below.Which of the following methods of polymerization is most suitable for this type of monomer? A) Free-radical chain-growth B) Cationic chain-growth C) Anionic chain-growth D) Acid-catalyzed step-growth


A) Free-radical chain-growth
B) Cationic chain-growth
C) Anionic chain-growth
D) Acid-catalyzed step-growth

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

Correct Answer

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Vulcanization is the process of cross-linking polymer chains in rubber using what chemical?


A) Sulfur
B) Formaldehyde
C) Benzoyl peroxide
D) Ethylene glycol

E) All of the above
F) A) and B)

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Which monomer and which type of initiator would you use to synthesize the following polymer? Which monomer and which type of initiator would you use to synthesize the following polymer? A) A B) B C) C D) D E) E


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

F) A) and D)
G) D) and E)

Correct Answer

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The acid-catalyzed dimerization of isobutylene gives a mixture of two isomeric alkenes, A and B.Hydrogenation of this mixture gives a single C8H18 hydrocarbon.What is the structure of this hydrocarbon? The acid-catalyzed dimerization of isobutylene gives a mixture of two isomeric alkenes, A and B.Hydrogenation of this mixture gives a single C<sub>8</sub>H<sub>18</sub> hydrocarbon.What is the structure of this hydrocarbon? A) 2,2,4-Trimethylpentane B) 2,3,4-Trimethylpentane C) 2,4-Dimethylhexane D) 2,5-Dimethyhexane


A) 2,2,4-Trimethylpentane
B) 2,3,4-Trimethylpentane
C) 2,4-Dimethylhexane
D) 2,5-Dimethyhexane

E) A) and B)
F) A) and C)

Correct Answer

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Identify the repeating unit in the polymer formed from the following reaction sequence. Identify the repeating unit in the polymer formed from the following reaction sequence. A) A B) B C) C D) D


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

E) A) and B)
F) A) and C)

Correct Answer

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What is the purpose of plasticizers?


A) To harden plastics
B) To soften plastics
C) To initiate polymerizations
D) To cross-link polymer chains

E) A) and B)
F) A) and C)

Correct Answer

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Which of the following best describes the polymer chain shown below? Which of the following best describes the polymer chain shown below? A) Atactic polypropylene B) Isotactic polypropylene C) Syndiotactic polypropylene D) Cross-linked polypropylene


A) Atactic polypropylene
B) Isotactic polypropylene
C) Syndiotactic polypropylene
D) Cross-linked polypropylene

E) B) and D)
F) None of the above

Correct Answer

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Which of the following initiators can be used for anionic chain-growth polymerization?


A) Benzoyl peroxide
B) CH3CH2CH2CH2Li
C) BF3
D) Al(CH2CH3) 3, TiCl4

E) All of the above
F) C) and D)

Correct Answer

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