Question 1

Ceramics are polymeric inorganic compounds that have low melting points.

Accepted Answer

A) True 
 B)False

Question 2

What is the name of the C60 molecule that resembles an architectural structure called a geodesic dome?

Accepted Answer

A)  Graphene
B)  Buckminsterfullerene
C)  Geodene
D)  Soccerballene
E)  BuckeneF) A) and D)
G) A) and C)

Question 3

Vulcanization

Accepted Answer

A)  leads to cross-linking of poly-cis-isoprene chains in rubber with sulfur.
B)  provides considerable elasticity in rubber.
C)  severs the carbon-carbon chain in rubber.
D)  provides a smooth surface to rubber.
E)  leads to cross-linking of poly-cis-isoprene chains in rubber with sulfur and provides considerable elasticity in rubber.F) C) and D)
G) A) and C)

Question 4

Materials with a small energy gap between the valence band and the conduction band are called

Accepted Answer

A)  conductors.
B)  insulators.
C)  metals.
D)  semiconductors.
E)  nonconductors.F) A) and E)
G) A) and B)

Question 5

Describe the difference between a semiconductor and an insulator.

Accepted Answer

The gap between the valence ba...

Question 6

What type of polymer is represented by the following repeating segment?

Accepted Answer

A)  Polyamide
B)  Polyester
C)  Polyether
D)  Polyolefin
E)  PolyethyleneF) A) and D)
G) B) and E)

Question 7

A peptide bond (also called an amide bond) joins two amino acids together.What atoms are linked by this bond?

Accepted Answer

A)  C - O
B)  C - H
C)  C - N
D)  N - S
E)  S - CF) C) and E)
G) B) and D)

Question 8

Which of these polymers is used in disposable cups and plates?

Accepted Answer

A)  Polystyrene
B)  PVC
C)  Teflon
D)  Nylon 6,6
E)  DacronF) A) and C)
G) B) and D)

Question 9

A polymer where the monomers are connected by an amide linkage are called polyamines.

Accepted Answer

A) True 
 B)False

Question 10

___________ _________ _________ are used in calculators,watches,and laptop computers because polarized light can be transmitted through one phase but not transmitted through another.

Accepted Answer

Liquid cry...

Question 11

The segment represents the polymer named

Accepted Answer

A)  polybutylene.
B)  polystyrene.
C)  polypropylene.
D)  polyvinyl chloride.
E)  polyethylene.F) All of the above
G) D) and E)

Question 12

Which is the best description for the following structural representation of an addition polymer? 2C=CHX. C) It is a syndiotactic polymer made from the monomer XHC=CHX. D) It is an isotactic polymer made from the monomer H2C=CHX. E) It is an isotactic polymer made from the monomer XHC=CHX." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  It is an atactic polymer.
B)  It is a syndiotactic polymer made from the monomer H2C=CHX.
C)  It is a syndiotactic polymer made from the monomer XHC=CHX.
D)  It is an isotactic polymer made from the monomer H2C=CHX.
E)  It is an isotactic polymer made from the monomer XHC=CHX.F) A) and D)
G) A) and C)

Question 13

Polyethylene consisting primarily of unbranched chains is known as high-density polyethylene

Accepted Answer

A) True 
 B)False

Question 14

_________________ is the process where sulfur is used to create linkages between individual polymer chains in rubber.

Accepted Answer

The answer of _________________ is the process where sulfur is...

Question 15

What does LDPE mean?

Accepted Answer

Low-densit...

Question 16

Which of the following contains a phenyl group?

Accepted Answer

A)  Polyethylene
B)  PVC
C)  Polystyrene
D)  Nylon 6,6
E)  TeflonF) A) and B)
G) D) and E)

Question 17

Which one of these materials is a copolymer?

Accepted Answer

A)  Styrene-butadiene
B)  Polyvinyl chloride
C)  Polypropylene
D)  Poly-cis-isoprene
E)  PolyethyleneF) B) and D)
G) A) and D)

Question 18

A(n)________ __________ is made from two or more substances with different properties that remain separate in the bulk material.

Accepted Answer

The answer of A(n)________ __________ is made from two or...

Question 19

In order to form a condensation polymer from the following monomer,which other monomer should be selected?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) B) and E)
G) A) and B)

Question 20

What name is given to the bonds that make rubber much stronger and more rigid than natural polyisoprene (rubber) ?

Accepted Answer

A)  Sulfide bonds
B)  Cross-links
C)  Carbon-sulfides
D)  Bridge bonds
E)  Brawny bondsF) B) and D)
G) A) and E)

Exam 12: Modern Materials

A(n)________ __________ is made from two or more substances with different properties that remain separate in the bulk material.

Correct AnswerverifiedShow Answer

Vulcanization

Correct AnswerverifiedShow Answer

The segment represents the polymer named

Correct AnswerverifiedShow Answer

Ceramics are polymeric inorganic compounds that have low melting points.

Correct AnswerverifiedShow Answer

What does LDPE mean?

Correct AnswerverifiedLow-densit...View AnswerShow Answer

What name is given to the bonds that make rubber much stronger and more rigid than natural polyisoprene (rubber) ?

Correct AnswerverifiedShow Answer

Which is the best description for the following structural representation of an addition polymer?

Correct AnswerverifiedShow Answer

In order to form a condensation polymer from the following monomer,which other monomer should be selected?

Correct AnswerverifiedShow Answer

Which one of these materials is a copolymer?

Correct AnswerverifiedShow Answer

_________________ is the process where sulfur is used to create linkages between individual polymer chains in rubber.

Correct AnswerverifiedShow Answer

Materials with a small energy gap between the valence band and the conduction band are called

Correct AnswerverifiedShow Answer

A peptide bond (also called an amide bond) joins two amino acids together.What atoms are linked by this bond?

Correct AnswerverifiedShow Answer

A polymer where the monomers are connected by an amide linkage are called polyamines.

Correct AnswerverifiedShow Answer

Which of the following contains a phenyl group?

Correct AnswerverifiedShow Answer

What type of polymer is represented by the following repeating segment?

Correct AnswerverifiedShow Answer

What is the name of the C60 molecule that resembles an architectural structure called a geodesic dome?

Correct AnswerverifiedShow Answer

___________ _________ _________ are used in calculators,watches,and laptop computers because polarized light can be transmitted through one phase but not transmitted through another.

Correct AnswerverifiedLiquid cry...View AnswerShow Answer

Which of these polymers is used in disposable cups and plates?

Correct AnswerverifiedShow Answer

Polyethylene consisting primarily of unbranched chains is known as high-density polyethylene

Correct AnswerverifiedShow Answer

Describe the difference between a semiconductor and an insulator.

Correct AnswerverifiedThe gap between the valence ba...View AnswerShow Answer

A(n) __ is made from two or more substances with different properties that remain separate in the bulk material.

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Low-densit...
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What is the name of the C₆₀ molecule that resembles an architectural structure called a geodesic dome?

Correct Answer
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_______ _ _____ are used in calculators,watches,and laptop computers because polarized light can be transmitted through one phase but not transmitted through another.

Correct Answer
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Liquid cry...
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The gap between the valence ba...
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