Question 1

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

Question 2

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 D)
F) B) and C)

Question 3

Which of the following is the repeating unit in polyvinyl chloride (PVC) ?

Accepted Answer

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

Question 4

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 D)
F) A) and C)

Question 5

Which of the following is (are) repeating unit(s) of step-growth polymers?

Accepted Answer

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

Question 6

What is the name given to polymers with single monomers?

Accepted Answer

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

Question 7

Which of the following monomers yields the polymer shown below?

Accepted Answer

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

Question 8

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? 8H18 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" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  2,2,4-Trimethylpentane
B)  2,3,4-Trimethylpentane
C)  2,4-Dimethylhexane
D)  2,5-DimethyhexaneE) A) and B)
F) None of the above

Question 9

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

Accepted Answer

A)  H2C=CH2
B)  H2C=CHCH3
C)  H2C=C(CH3) 2
D)  H2C=CHCNE) C) and D)
F) A) and B)

Question 10

The repeating unit of a polymer is shown below.This polymer is formed by

Accepted Answer

A)  addition of ethylene.
B)  addition of trans-2-butene.
C)  1,2 addition of butadiene.
D)  1,4 addition of butadiene.E) A) and B)
F) C) and D)

Question 11

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) C) and D)

Question 12

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

Question 13

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

Question 14

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 B)
F) All of the above

Question 15

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

Accepted Answer

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

Question 16

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

Question 17

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) A) and D)

Question 18

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

Accepted Answer

A)  Benzoyl peroxide
B)  CH3CH2CH2CH2Li
C)  BF3
D)  Al(CH2CH3) 3,TiCl4E) B) and C)
F) A) and D)

Question 19

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

Question 20

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

Exam 28: Synthetic Polymers

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

Correct AnswerverifiedB

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

Correct AnswerverifiedShow Answer

Which of the following is the repeating unit in polyvinyl chloride (PVC) ?

Correct AnswerverifiedA

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

Correct AnswerverifiedShow Answer

Which of the following is (are) repeating unit(s) of step-growth polymers?

Correct AnswerverifiedShow Answer

What is the name given to polymers with single monomers?

Correct AnswerverifiedShow Answer

Which of the following monomers yields the polymer shown below?

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The repeating unit of a polymer is shown below.This polymer is formed by

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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.)

Correct AnswerverifiedA

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

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?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

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.)

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified