Question 1

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

Question 2

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

Question 3

What is the name given to polymers with single monomers?

Accepted Answer

A)  Homopolymers
B)  Copolymers
C)  Block polymers
D)  Random polymersE) A) and C)
F) A) and B)

Question 4

What type of polymer is Nylon?

Accepted Answer

A)  Epoxy
B)  Polyurethane
C)  Polycarbonate
D)  PolyamideE) A) and B)
F) A) and C)

Question 5

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 D)
F) C) and D)

Question 6

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) A) and B)
F) B) and D)

Question 7

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

Question 8

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) C) and D)
F) None of the above

Question 9

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) A) and C)
F) None of the above

Question 10

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) None of the above
F) B) and C)

Question 11

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

Accepted Answer

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

Question 12

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) None of the above
F) B) and C)

Question 13

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 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) A) and D)
F) A) and B)

Question 15

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 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) C) and D)

Question 17

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

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

Question 19

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

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) B) and D)
F) All of the above

Question 20

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

Exam 28: Synthetic Polymers

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

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

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

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

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

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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 (are) addition polymer(s) ? I.polypropylene II) Teflon III) 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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Which of the following is the repeating unit of the polymer formed in the polymerization reaction shown below?

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

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

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

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

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

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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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