Question 1

What is the classification of the following polymer in which X and Y represent repeating units?

Accepted Answer

A)  Block copolymer
B)  Homopolymer
C)  Alternating copolymer
D)  Random copolymerE) A) and C)
F) None of the above

Question 2

In which type of polymer are the chains packed less tightly together,resulting in lower melting points and a softer texture?

Accepted Answer

A)  Isotactic polymers
B)  Syndiotactic polymers
C)  Atactic polymers
D)  Cross-linked polymersE) B) and D)
F) C) and D)

Question 3

What is the name given to polymers with two or more different monomers?

Accepted Answer

A)  Homopolymers
B)  Copolymers
C)  Block polymers
D)  Random polymersE) None of the above
F) C) and D)

Question 4

Which of the following is the monomer that gives the polymer shown below?

Accepted Answer

A)  A
B)  B
C)  C
D)  DE) A) and B)
F) A) and C)

Question 5

What is the name given to polymers with single monomers?

Accepted Answer

A)  Homopolymers
B)  Copolymers
C)  Block polymers
D)  Random polymersE) All of the above
F) B) and C)

Question 6

What is the structure of the polymer which results when styrene is reacted with BF3 and H2O? 3 and H2O?   A) A B) B C) C D) D" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  A
B)  B
C)  C
D)  DE) A) and D)
F) None of the above

Question 7

What type of polymer is Nylon?

Accepted Answer

A)  Epoxy
B)  Polyurethane
C)  Polycarbonate
D)  PolyamideE) None of the above
F) A) and B)

Question 8

Which of the following monomers is used to make the polymer carbowax,shown below?

Accepted Answer

A)  A
B)  B
C)  C
D)  DE) None of the above
F) B) and C)

Question 9

Which of the following is (are) addition polymer(s) ? I.polypropylene
II) Teflon
III) nylon

Accepted Answer

A)  Only I
B)  Only II
C)  Only III
D)  Both I and IIE) B) and C)
F) None of the above

Question 10

What modification occurs when a small amount of p-divinylbenzene is added to the polymerization reaction of styrene to form polystyrene? (Recall that the vinyl group is -CH=CH2.)

Accepted Answer

A)  Cross-linking of the polystyrene
B)  Isotactic stereochemistry of the polystyrene
C)  Syndiotactic stereochemistry of the polystyrene
D)  "Softening" of the polystyrene by a plasticizerE) All of the above
F) B) and D)

Question 11

Rank the following monomers (X,Y and Z) in order of increasing ability to undergo anionic polymerization,starting with the least reactive monomer.

Accepted Answer

A)  Y
B)  Z 
C)  X 
D)  Y < Z < XE) B) and C)
F) A) and C)

Question 12

Which of the following is the repeating unit of the polymer formed in the polymerization of p-hydroxybenzoic acid?

Accepted Answer

A)  A
B)  B
C)  C
D)  DE) A) and C)
F) A) and B)

Question 13

Identify the monomer(s) needed to make the following polyester.

Accepted Answer

A)  3-Hydroxybutanoic acid
B)  Butanedioic acid
C)  Butanedioic acid and ethylene glycol
D)  Butanedioic acid and ethanolE) A) and C)
F) None of the above

Question 14

Which of the following is the repeating unit of the polymer formed in the polymerization reaction shown below?

Accepted Answer

A)  A
B)  B
C)  C
D)  DE) All of the above
F) A) and B)

Question 15

What are the structures of the three monomers needed to synthesize the following polymer?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) A) and B)
F) B) and C)

Question 16

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.)  2OH.)    A) Ortho and para-hydroxybenzaldehyde B) Meta-hydroxybenzaldehyde C) Ortho and para-(hydroxymethyl) phenol D) Meta-(hydroxymethyl) phenol" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

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

Question 17

Which one of the following monomers undergoes cationic polymerization most readily?

Accepted Answer

A)  H2C=CH2
B)  H2C=CHCH3
C)  H2C=C(CH3) 2
D)  H2C=CHCNE) All of the above
F) A) and B)

Question 18

Which of the following initiators is used to make isotactic polypropylene?

Accepted Answer

A)  Benzoyl peroxide
B)  CH3CH2CH2CH2Li
C)  BF3
D)  Al(CH2CH3) 3,TiCl4E) A) and C)
F) None of the above

Question 19

What monomer(s) would be used to make the polyester shown below?

Accepted Answer

A)  Butanedioic acid
B)  4-Hydroxybutanal
C)  4-Hydroxybutanoic acid
D)  Butanedioic acid and 1,4-butanediolE) B) and C)
F) C) and D)

Question 20

Which of the following best describes the polymer chain shown below?

Accepted Answer

A)  Atactic polypropylene
B)  Isotactic polypropylene
C)  Syndiotactic polypropylene
D)  Cross-linked polypropyleneE) A) and B)
F) None of the above

Exam 28: Synthetic Polymers

Identify the monomer(s) needed to make the following polyester.

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What are the structures of the three monomers needed to synthesize the following polymer?

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What is the structure of the polymer which results when styrene is reacted with BF3 and H2O?

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What is the name given to polymers with two or more different monomers?

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Which of the following is the repeating unit of the polymer formed in the polymerization reaction shown below?

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What monomer(s) would be used to make the polyester shown below?

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What is the classification of the following polymer in which X and Y represent repeating units?

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Rank the following monomers (X,Y and Z) in order of increasing ability to undergo anionic polymerization,starting with the least reactive monomer.

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In which type of polymer are the chains packed less tightly together,resulting in lower melting points and a softer texture?

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What is the name given to polymers with single monomers?

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What modification occurs when a small amount of p-divinylbenzene is added to the polymerization reaction of styrene to form polystyrene? (Recall that the vinyl group is -CH=CH2.)

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Which of the following monomers is used to make the polymer carbowax,shown below?

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Which of the following is the monomer that gives the polymer shown below?

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Which one of the following monomers undergoes cationic polymerization most readily?

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Which of the following best describes the polymer chain shown below?

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Which of the following is (are) addition polymer(s) ? I.polypropylene II) Teflon III) nylon

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Which of the following is the repeating unit of the polymer formed in the polymerization of p-hydroxybenzoic acid?

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Which of the following initiators is used to make isotactic polypropylene?

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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.)

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What type of polymer is Nylon?

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What is the structure of the polymer which results when styrene is reacted with BF₃ and H₂O?

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What modification occurs when a small amount of p-divinylbenzene is added to the polymerization reaction of styrene to form polystyrene? (Recall that the vinyl group is -CH=CH₂.)

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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.)

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Correct Answer
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