Test Bank Answers Ch.27 Synthetic Polymers Klein - Organic Chemistry 4e | Test Bank by Klein by David R. Klein. DOCX document preview.
Organic Chemistry, 4e (Klein)
Chapter 27 Synthetic Polymers
1) Polymers are comprised of repeating units that are formed by joining ________.
A) tetramers
B) monomers
C) dimers
D) trimers
E) none of these
Diff: 1
Learning Objective: 27.1 Describe the general structure of a polymer, and compare synthetic polymers and biopolymers
2) Which one of the choices is (are) a biopolymer?
A) RNA
B) DNA
C) polysaccharides
D) proteins
E) all of these
Diff: 1
Learning Objective: 27.1 Describe the general structure of a polymer, and compare synthetic polymers and biopolymers
3) Which one of the choices is not a biopolymer?
A) amylopectin
B) DNA
C) glycogen
D) chitin
E) none of these
Diff: 1
Learning Objective: 27.1 Describe the general structure of a polymer, and compare synthetic polymers and biopolymers
4) Which one of the given monomers will produce polyisobutylene?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 1
Learning Objective: 27.2 Assign a name to a polymer using IUPAC rules
5) Which one of the given monomers will produce poly(vinyl chloride)?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 1
Learning Objective: 27.2 Assign a name to a polymer using IUPAC rules
6) Which one of the given monomers will produce polyisoprene?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 1
Learning Objective: 27.2 Assign a name to a polymer using IUPAC rules
7) Which one of the given monomers will produce polytetrafluoroethylene?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 1
Learning Objective: 27.2 Assign a name to a polymer using IUPAC rules
8) Which one of the choices is the correct structure for polystyrene?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 1
Learning Objective: 27.2 Assign a name to a polymer using IUPAC rules
9) Which one of the choices is the correct structure for poly(vinylidene fluoride)?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 1
Learning Objective: 27.2 Assign a name to a polymer using IUPAC rules
10) Which one of the choices is the correct structure for poly(vinyl acetate)?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 1
Learning Objective: 27.2 Assign a name to a polymer using IUPAC rules
11) Which one of the choices is the correct structure for poly(methyl α-cyanoacrylate?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 1
Learning Objective: 27.2 Assign a name to a polymer using IUPAC rules
12) Identify the polymer used in nonstick frying pans.
A) polytetrafluoroethylene
B) polystyrene
C) polypropylene
D) polyethylene
E) poly(vinyl chloride)
Diff: 1
Learning Objective: 27.2 Assign a name to a polymer using IUPAC rules
13) Identify the polymer used in plumbing.
A) polytetrafluoroethylene
B) polystyrene
C) polypropylene
D) polyethylene
E) poly(vinyl chloride)
Diff: 1
Learning Objective: 27.2 Assign a name to a polymer using IUPAC rules
14) Identify the polymer used in disposable cups.
A) polytetrafluoroethylene
B) polystyrene
C) polypropylene
D) polyethylene
E) poly(vinyl chloride)
Diff: 1
Learning Objective: 27.2 Assign a name to a polymer using IUPAC rules
15) A homopolymer is a polymer constructed from ________.
A) a single type of monomer
B) two different types of monomers
C) many different types of monomers
D) a dimer
E) a trimer
Diff: 1
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
16) A copolymer is a polymer constructed from ________.
A) a single type of monomer
B) two or more different types of monomers
C) monosaccharides
D) a dimer
E) a trimer
Diff: 1
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
17) Which one of the choices is classified as a homopolymer?
A) saran
B) viton
C) poly(vinyl bromide)
D) SAN
E) ABS
Diff: 1
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
18) Which one of the choices is classified as a copolymer?
A) saran
B) polyacrylonitrile
C) poly(vinyl bromide)
D) polystyrene
E) polyethylene
Diff: 2
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
19) Polymers constructed from a single type of monomer are called ________, whereas those constructed from two or more different types of monomers are called ________.
A) copolymers; homopolymers
B) homopolymers; copolymers
C) block polymers; homopolymers
D) homopolymers; block polymers
E) copolymers; block polymers
Diff: 1
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
20) Identify the polymer used in food packaging.
A) SAN
B) ABS
C) butyl rubber
D) viton
E) saran
Diff: 1
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
21) The given polymer is classified as a(n) ________.
A) homopolymer
B) block copolymer
C) graft copolymer
D) alternating copolymer
E) random copolymer
Diff: 1
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
22) The given polymer is classified as a(n) ________.
A) homopolymer
B) block copolymer
C) graft copolymer
D) alternating copolymer
E) random copolymer
Diff: 1
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
23) The given polymer is classified as a(n) ________.
A) homopolymer
B) block copolymer
C) graft copolymer
D) alternating copolymer
E) random copolymer
Diff: 1
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
24) The given polymer is classified as a(n) ________.
A) homopolymer
B) block copolymer
C) graft copolymer
D) alternating copolymer
E) random copolymer
Diff: 1
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
25) Which of the choices is a region of a block copolymer constructed from isobutylene and vinyl fluoride?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 1
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
26) Which of the choices is a region of an alternate copolymer constructed from isobutylene and vinyl fluoride?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 1
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
27) Which of the choices is a region of a random copolymer constructed from isobutylene and vinyl fluoride?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 2
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
28) Which choice shows the structure of a region of an alternating copolymer constructed from propylene and acrylonitrile?
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
29) Which choice shows the structure of a region of a random copolymer constructed from ethylene and styrene?
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
30) PET, used to make soft-drink bottles, is classified as a(n) ________.
A) homopolymer
B) block copolymer
C) graft copolymer
D) alternating copolymer
E) random copolymer
Diff: 1
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
31) Polyesters are classified as ________.
A) homopolymers
B) block copolymers
C) graft copolymers
D) alternating copolymers
E) random copolymers
Diff: 1
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
32) Which of the given monomers is required to make the polymer below?
A) propene
B) isobutylene
C) isoprene
D) styrene
E) none of these
Diff: 2
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
33) Which of the given monomer pairs is required to make the polymer shown?
A) propene and acrylonitrile
B) isoprene and acrylonitrile
C) ethylene and acrylonitrile
D) isobutylene and acrylonitrile
E) none of these
Diff: 2
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
34) Which of the given monomer pairs is required to make the polymer below?
A) propene and isobutylene
B) isoprene and propene
C) ethylene and butene
D) isobutylene and isoprene
E) none of these
Diff: 2
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
35) Which of the given monomer pairs is required to make the polymer below?
A) styrene and acrylonitrile
B) styrene and propylnitrile
C) phenylpropene and acrylonitrile
D) phenylpropene and propylnitrile
E) none of these
Diff: 2
Learning Objective: 27.3 Compare and contrast homopolymers and copolymers, alternating and random copolymers, and block and graft copolymers
36) Which of the choices is used as an initiator in radical polymerization?
A) BF3, H2O
B) CH3CH2CH2CH2Li
C) ROOR
D) NaOH
E) H2O
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
37) Which of the choices is used as an initiator in cationic polymerization?
A) BF3, H2O
B) CH3CH2CH2CH2Li
C) ROOR
D) NaOH
E) none of these
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
38) Which of the choices is used as an initiator in anionic polymerization?
A) BF3, H2O
B) CH3CH2CH2CH2Li
C) ROOR
D) H2SO4
E) none of these
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
39) Which of the given monomers would be most reactive towards cationic polymerization?
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
40) Which of the given monomers would be most reactive towards anionic polymerization?
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
41) Arrange the given monomers in decreasing order of reactivity towards cationic polymerization.
A) I > III > II
B) II > I > III
C) III > II > I
D) II > III > I
E) III > I > II
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
42) Arrange the given monomers in decreasing order of reactivity towards anionic polymerization.
A) I > III > II
B) II > III > I
C) III > II > I
D) II > I > III
E) III > I > II
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
43) Arrange the given monomers in decreasing order of reactivity towards anionic polymerization.
A) I > III > II
B) II > I > III
C) III > II > I
D) II > III > I
E) III > I > II
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
44) Which of the given monomer(s) would undergo cationic polymerization? Select all that apply.
A) vinylidene fluoride
B) acrylonitrile
C) isobutylene
D) vinyl acetate
E) all of these
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
45) Which of the given monomer(s) would undergo anionic polymerization? Select all that apply.
A) vinyl acetate
B) acrylonitrile
C) isobutylene
D) vinylidene chloride
E) all of these
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
46) Which of the given monomer(s) would undergo both radical and cationic polymerization?
A) methyl methacrylate
B) acrylonitrile
C) isobutylene
D) vinylidene chloride
E) all of these
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
47) Which of the given polymers would be best prepared using cationic polymerization?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
48) Which of the given polymers would be best prepared using anionic polymerization?
A) I
B) II
C) III
D) IV
E) none of these
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
49) ________ polymerization usually forms living polymers if the process is not terminated by an electrophile.
A) Anionic
B) Cationic
C) Radical
D) Condensation
E) Elimination
Diff: 1
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
50) Identify the type of addition that is used to form Superglue.
A) anionic
B) cationic
C) radical
D) condensation
E) elimination
Diff: 1
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
51) Which of the choices is (are) condensation polymer(s)?
A) nylon 6,6
B) polyisobutylene
C) poly(vinyl chloride)
D) polycarbonate
E) A and D
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
52) Which of the given monomers would produce the condensation polymer shown?
A) I and II
B) I and III
C) II and III
D) II and IV
E) I and IV
Diff: 3
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
53) What is the structure of a region of the polymer that is produced when the given monomers react?
A) I
B) II
C) III
D) IV
E) V
Diff: 3
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
54) Which of the given monomers would produce the condensation polymer shown?
A) I
B) II
C) III
D) IV
E) C and D
Diff: 3
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
55) Which of the given monomers would produce the condensation polymer shown?
A) I
B) II
C) III
D) IV
E) C and D
Diff: 3
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
56) Nomex is a synthetic polymer with the structure shown. What is the structure(s) of the monomer(s) that would produce Nomex?
A) I and II
B) I and III
C) II and III
D) II and IV
E) I and IV
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
57) What is the structure of the monomer(s) that would produce the condensation polymer shown?
A) I and II
B) I and III
C) II and III
D) II and IV
E) I and IV
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
58) What is the structure of the monomer(s) that would produce the condensation polymer shown?
A) I and II
B) I and III
C) II and III
D) II and IV
E) I and IV
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
59) Provide the structure of a region of the polymer that is produced when phosgene is treated with 3,3-dimethyl-1,5-pentanediol.
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
60) Provide the structure of a region of the polymer that is produced when the given monomers are treated in the presence of dilute NaOH.
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
61) What monomers form PET?
A) terephthalic acid and ethylene glycol
B) phosgene and ethylene glycol
C) terephthalic acid and propylene glycol
D) urethane and carbamate
E) terephthalic acid and carbamate
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
62) What monomers form Nylon 6,6?
A) adipic acid and ethylene glycol
B) phosgene and 1,6-hexandiamine
C) terephthalic acid and 1,6-hexandiamine
D) adipic acid and 1,6-hexandiamine
E) terephthalic acid and carbamate
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
63) What monomers form Lexan?
A) adipic acid and Bisphenol-A
B) phosgene and 1,6-hexandiamine
C) terephthalic acid and 1,6-hexandiamine
D) adipic acid and 1,6-hexandiamine
E) phosgene and Bisphenol-A
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
64) Identify the type of compound used to make safety goggles.
A) polyester
B) polyamide
C) polyether
D) polyalcohol
E) polycarbonate
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
65) What is not an example of a small molecule that is released in a condensation reaction?
A) water
B) carbon dioxide
C) nitrogen gas
D) benzene
Diff: 2
Learning Objective: 27.4 Discuss the reaction types that can be used in the synthesis of addition and condensation polymers
66) Which of the choices are examples of chain growth polymerization?
A) radical polymerization
B) cationic polymerization
C) anionic polymerization
D) condensation polymerization
E) A, B and C
Diff: 1
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
67) Which of the choices are examples of step growth polymerization?
A) radical polymerization
B) cationic polymerization
C) anionic polymerization
D) condensation polymerization
E) none of these
Diff: 1
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
68) Which of the given polymerization processes best describes the formation of polycarbonates?
A) step growth addition
B) chain growth addition
C) step growth condensation
D) chain growth condensation
E) none of these
Diff: 2
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
69) Which of the given polymerization processes best describes the formation of polyurethanes?
A) step growth addition
B) chain growth addition
C) step growth condensation
D) chain growth condensation
E) none of these
Diff: 2
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
70) Which of the given polymerization processes best describes the formation of polyisobutylene?
A) step growth addition
B) chain growth addition
C) step growth condensation
D) chain growth condensation
E) none of these
Diff: 2
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
71) What are the monomers in a polyurethane?
A) isocyanate and alcohol
B) diisocyanate and diol
C) ester and amine
D) carboxylic acid and amine
E) amide and alcohol
Diff: 2
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
72) ________ polymers are formed under conditions in which the individual monomers react with each other to form oligomers, which are then joined to form polymers.
A) Step growth
B) Chain growth
C) Branched
D) Graft
E) none of these
Diff: 2
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
73) What is the classification of the polymer shown?
A) polyester
B) polyamide
C) polyurethane
D) polycarbonate
E) none of these
Diff: 2
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
74) What monomer(s) would produce the polymer shown?
A) I and II
B) I and III
C) II and III
D) II and IV
E) I and IV
Diff: 2
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
75) Provide the structure of a region of the polymer that is produced when isocyanate, shown below, is treated with 1,4-butanediol.
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
76) What is the polymer that is used in bullet-proof vests?
A) Nylon 6
B) Teflon
C) Kevlar
D) Lexan
E) Nylon 6,6
Diff: 1
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
77) What polymer is used in bicycle helmets?
A) Nylon 6
B) Teflon
C) Kevlar
D) Lexan
E) Nylon 6,6
Diff: 1
Learning Objective: 27.5 Compare the processes involved in the formation of chain-growth and step-growth polymers
78) What polymer is used in rope?
A) Nylon 6
B) Teflon
C) Kevlar
D) Lexan
E) Nylon 6,6
Diff: 1
Learning Objective: 27.8 Discuss the limitations on recycling polymers, and the potential benefits of biodegradable polymers
79) Which of the given statements is(are) true about linear polymers?
A) they are highly branched
B) they may be slightly branched
C) they can have no branching
D) A and B
E) B and C
Diff: 1
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
80) Which of the choices best describes the polymer shown?
A) atactic
B) isotactic
C) syndiotactic
D) antidiotactic
E) none of these
Diff: 1
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
81) Which of the choices best describes the polymer shown?
A) atactic
B) isotactic
C) syndiotactic
D) antidiotactic
E) none of these
Diff: 1
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
82) Which of the choices best describes the polymer shown?
A) atactic
B) isotactic
C) syndiotactic
D) antidiotactic
E) none of these
Diff: 1
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
83) An isotactic polymer has a ________ configuration.
A) random
B) alternating
C) same
D) block
E) graft
Diff: 1
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
84) An atactic polymer has a ________ configuration.
A) random
B) alternating
C) same
D) block
E) graft
Diff: 1
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
85) A syndiotactic polymer has a ________ configuration.
A) random
B) alternating
C) same
D) block
E) graft
Diff: 1
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
86) Draw a possible segment of atactic polyacrylonitrile.
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
87) Draw a possible segment of isotactic polyacrylonitrile.
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
88) Draw a possible segment of syndiotactic polyacrylonitrile.
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
89) Draw a possible segment of syndiotactic poly(vinyl fluoride).
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
90) Draw a possible segment of isotactic poly(vinyl acetate).
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
91) Polymerization of ethylene in the presence of a Ziegler-Natta catalyst results in ________.
A) LDPE
B) MDPE
C) HDPE
D) B and C
E) none of these
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
92) Free radical polymerization of ethylene results in ________.
A) LDPE
B) MDPE
C) HDPE
D) B and C
E) none of these
Diff: 2
Learning Objective: 27.8 Discuss the limitations on recycling polymers, and the potential benefits of biodegradable polymers
93) Which of the given types of polyethylene is used to make trash bags?
A) HDPE
B) LDPE
C) MDPE
D) A and C
E) none of these
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
94) Which of the given types of polyethylene is used to make Tupperware?
A) HDPE
B) LDPE
C) MDPE
D) A and C
E) none of these
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
95) Vulcanization of rubber results in ________ between the neighboring chains of the polymer.
A) hydrogen bonding
B) salt bridges
C) phosphide bridges
D) disulfide bridges
E) none of these
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
96) Which of the given elements is used during the vulcanization of rubber?
A) silicon
B) aluminum
C) sulfur
D) phosphorous
E) silver
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
97) Neoprene, which is used in gaskets, electrical insulation, and other products, has the structure shown. What is the structure of the monomer?
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
98) SBR (styrene-butadiene rubber) is used in the manufacturing of automobile tires. What is the structure of a region of this polymer?
A) I
B) II
C) III
D) IV
E) V
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
99) Which of the choices best describes crystallites?
A) crossed linked chains with disulfide bridges
B) linearly arranged chains held together by van der Waals forces
C) crossed linked chains held together by van der Waals forces
D) linearly arranged chains with disulfide bridges
E) hydrogen bonding between chains
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
100) ________ regions in polymers make the polymer hard and durable.
A) Amorphous
B) Cross linked
C) Crystalline
D) A and B
E) B and C
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
101) ________ regions in polymers make the polymer flexible.
A) Amorphous
B) Cross linked
C) Crystalline
D) B and C
E) none of these
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
102) The glass transition temperature (Tg), is the temperature at which the ________ regions of the polymers become ________.
A) crystalline; amorphous
B) amorphous; hard
C) crystalline; hard
D) amorphous; soft
E) none of these
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
103) The melt transition temperature (Tm), is the temperature at which the ________ regions of the polymers become ________.
A) crystalline; amorphous
B) amorphous; hard
C) crystalline; hard
D) non-crystalline; soft
E) none of these
Diff: 2
Learning Objective: 27.6 Compare branched, linear, and cross-linked polymers, isotactic, syndiotactic, and atactic polymers, and compare crystalline and amorphous polymers
104) Which of the given polymers are hard at room temperature and soft at high temperature?
A) fibers
B) elastomers
C) plasticizers
D) thermoplastics
E) thermosetting resins
Diff: 1
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
105) Which of the given polymers is(are) classified as thermoplastics?
A) PVC
B) PET
C) LDPE
D) HDPE
E) all of these
Diff: 2
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
106) Addition of ________ to thermoplastics increases flexibility of the polymer.
A) PVC
B) plasticizers
C) resins
D) LDPE
E) elastomers
Diff: 2
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
107) Which one of the choices is the best classification of an amorphous polymer that is flexible?
A) fibers
B) elastomers
C) plasticizers
D) thermoplastics
E) thermosetting resins
Diff: 2
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
108) Which of the given polymers is(are) classified as elastomers?
A) spandex
B) natural rubber
C) HDPE
D) A and B
E) all of these
Diff: 2
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
109) Which of the choices best describe elastomers?
A) polymers that are hard at room temperature
B) polymers that return to original shape after being stretched
C) small molecules that are added to polymers to increase flexibility
D) polymers that can form fibers
E) none of these
Diff: 2
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
110) Which of the choices is the best classification of crystalline polymers with high tensile strength?
A) fibers
B) elastomers
C) plasticizers
D) thermoplastics
E) thermosetting resins
Diff: 2
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
111) Which of the choices is the best classification of chewing gum?
A) fibers
B) elastomers
C) plasticizers
D) thermoplastics
E) thermosetting resins
Diff: 1
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
112) Which of the choices is the best classification of Nylon?
A) fibers
B) elastomers
C) plasticizers
D) thermoplastics
E) thermosetting resins
Diff: 1
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
113) Which of the choices is the best classification of the polymer Bakelite?
A) fibers
B) elastomers
C) plasticizers
D) thermoplastics
E) thermosetting resins
Diff: 2
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
114) The strength of the thermosetting polymers like Bakelite is due to ________.
A) cross linking
B) elastomers
C) plasticizers
D) thermoplastics
E) thermosetting resins
Diff: 2
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
115) Which of the given monomer(s) are used to prepare the polymer Bakelite?
A) phenol and acetaldehyde
B) phenol and formaldehyde
C) phenol and methanol
D) thermoplastics
E) none of these
Diff: 2
Learning Objective: 27.7 Describe thermoplastic polymers, elastomers, fibers, and thermosetting resins
116) Which of the given functional groups are common in biodegradable polymers?
A) esters
B) amides
C) anhydrides
D) A and B
E) A and C
Diff: 2
Learning Objective: 27.8 Discuss the limitations on recycling polymers, and the potential benefits of biodegradable polymers
117) Which of the given processes is(are) used in the recycling of soft drink bottles made of PET?
A) esterification
B) acid hydrolysis
C) melting
D) B and C
E) none of these
Diff: 2
Learning Objective: 27.8 Discuss the limitations on recycling polymers, and the potential benefits of biodegradable polymers
118) Which of the given descriptions is(are) consistent with biodegradable polymers?
A) polymers that can be broken down by enzymes produced by microorganisms
B) polymers with ester moieties
C) polymers with amide moieties
D) polymers known as polyhydroxyalkanoates
E) all of these
Diff: 2
Learning Objective: 27.8 Discuss the limitations on recycling polymers, and the potential benefits of biodegradable polymers
119) Which choice best defines biogradable polymers?
A) Polymers made of natural substances.
B) Polymers that can be broken down by enzymes produced by soil microorganisms.
C) Polymers that can be recycled using standard means.
D) Polymers that contain only organic materials.
E) Polymers that are not harmful to the environment even if they persist in the environment for an extended time.
Diff: 2
Learning Objective: 27.8 Discuss the limitations on recycling polymers, and the potential benefits of biodegradable polymers
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