Question 1

Which of the following is a medical application using polymers?

Accepted Answer

A)  Implants
B)  Prosthetics
C)  Wound dressings
D)  All of these choices are correct
E)  None of these choices is correct.F) All of the above
G) B) and E)

Question 2

What does HDPE mean?

Accepted Answer

High-densi...

Question 3

Which element,or combination of elements,could produce a semiconductor with the following band structure? (CB = conduction band,VB = valence band)

Accepted Answer

A)  Pure Si
B)  Si and C
C)  Si and In
D)  Si and Sb
E)  Si and FF) C) and D)
G) B) and D)

Question 4

Polymers where the substituents are oriented randomly along the polymer chain are called_______________.

Accepted Answer

The answer of Polymers where the substituents are oriented randomly...

Question 5

What is the process called that produces particles of nearly uniform size that are much more likely to produce a solid ceramic without gaps or cracks?

Accepted Answer

A)  Sintering
B)  Roasting
C)  Firing
D)  Stonewaring
E)  Sol-gelF) All of the above
G) C) and E)

Question 6

What is the name of the industrial process in which sulfur (S8) is used to create linkages between individual polymer chains in rubber?

Accepted Answer

A)  Rubberization
B)  Vulcanization
C)  Smelting
D)  Sulfonafication
E)  SulfonationF) A) and B)
G) A) and C)

Question 7

Polymers where all the substituents are in the same relative orientation are called_______________.

Accepted Answer

The answer of Polymers where all the substituents are in...

Question 8

What is the trademarked brand name for polytetrafluoroethylene?

Accepted Answer

A)  Glad
B)  Reynolds
C)  Saran
D)  PVC
E)  TeflonF) All of the above
G) A) and D)

Question 9

Which of the following is a synthetic polymer?

Accepted Answer

A)  cellulose
B)  polyisoprene
C)  DNA
D)  poly(hexamethyleneadipamide) 
E)  enzymesF) A) and B)
G) C) and E)

Question 10

One characteristic of the monomers that form condensation polymers that is not common in monomers that form addition polymers is

Accepted Answer

A)  the presence of alkyl side chains.
B)  their ability to form free radicals.
C)  the presence of pi bonds.
D)  the presence of two functional groups.E) A) and B)
F) All of the above

Question 11

What type of semiconductor is generated by adding small amounts of gallium to silicon?

Accepted Answer

A)  n-type semiconductor
B)  Ga-type semiconductor
C)  p-type semiconductor
D)  insulating semiconductorE) A) and B)
F) A) and C)

Question 12

The type of polymerization that yields water as a byproduct is called ____________.

Accepted Answer

The answer of The type of polymerization that yields water...

Question 13

_____________ is the process of preparing ceramics by heating a slurry of a powder of the inorganic substance in water to a very high temperature under high pressure.

Accepted Answer

The answer of _____________ is the process of preparing ceramics...

Question 14

What is the name of the condensation copolymer formed from ethylene glycol (a diol-a molecule with two alcohol groups) and para-terephthalic acid (a diacid-a molecule with two carboxy groups) ?

Accepted Answer

A)  Nylon 6,6
B)  Kevlar
C)  Polystyrene
D)  Dacron
E)  StyrofoamF) B) and D)
G) A) and B)

Question 15

The polymer formed from the monomer CH2=CH-CN is

Accepted Answer

A)   2=CH-CN is 
A)     . 
B)  (CH2=CHCN) n. 
C)  (CH2=CH=CN) n. 
D)     ." class="answers-bank-image d-inline" rel="preload" > .
B)  (CH2=CHCN) n.
C)  (CH2=CH=CN) n.
D)   2=CH-CN is 
A)     . 
B)  (CH2=CHCN) n. 
C)  (CH2=CH=CN) n. 
D)     ." class="answers-bank-image d-inline" rel="preload" > .E) None of the above
F) All of the above

Question 16

List three materials that can be used to form the matrix that holds the composite material together.

Accepted Answer

Polyester,...

Question 17

What term is used to describe the relative arrangements of chiral carbon atoms within a polymer?

Accepted Answer

A)  Chirality
B)  Handiness
C)  Tacticity
D)  Substituents
E)  DexterityF) A) and B)
G) B) and D)

Question 18

An amino acid is a compound that contains at least

Accepted Answer

A)  one amino group and one amide group.
B)  two amino groups and one carboxylic acid group.
C)  one hydroxyl group and one methyl group.
D)  one carboxylic acid group and one amino group.
E)  one methyl group and one amide group.F) All of the above
G) A) and C)

Question 19

A polymer made in a polymerization reaction that produces small molecules (such as water) as well as the polymer is classified as a/an _______ polymer.

Accepted Answer

A)  addition
B)  natural
C)  condensation
D)  elimination
E)  copolymerF) D) and E)
G) A) and D)

Question 20

What is the process called to prepare a ceramic by heating a slurry of a powder of an inorganic substance in water to a very high temperature under pressure?

Accepted Answer

A)  Sintering
B)  Roasting
C)  Firing
D)  Stonewaring
E)  Sol-gelF) A) and B)
G) A) and C)

Exam 12: Modern Materials

Which of the following is a medical application using polymers?

Correct AnswerverifiedShow Answer

Polymers where the substituents are oriented randomly along the polymer chain are called_______________.

Correct AnswerverifiedShow Answer

Which element,or combination of elements,could produce a semiconductor with the following band structure? (CB = conduction band,VB = valence band)

Correct AnswerverifiedShow Answer

_____________ is the process of preparing ceramics by heating a slurry of a powder of the inorganic substance in water to a very high temperature under high pressure.

Correct AnswerverifiedShow Answer

A polymer made in a polymerization reaction that produces small molecules (such as water) as well as the polymer is classified as a/an _______ polymer.

Correct AnswerverifiedShow Answer

What is the process called that produces particles of nearly uniform size that are much more likely to produce a solid ceramic without gaps or cracks?

Correct AnswerverifiedShow Answer

An amino acid is a compound that contains at least

Correct AnswerverifiedShow Answer

What is the trademarked brand name for polytetrafluoroethylene?

Correct AnswerverifiedShow Answer

The polymer formed from the monomer CH2=CH-CN is

Correct AnswerverifiedShow Answer

Which of the following is a synthetic polymer?

Correct AnswerverifiedShow Answer

List three materials that can be used to form the matrix that holds the composite material together.

Correct AnswerverifiedPolyester,...View AnswerShow Answer

What term is used to describe the relative arrangements of chiral carbon atoms within a polymer?

Correct AnswerverifiedShow Answer

One characteristic of the monomers that form condensation polymers that is not common in monomers that form addition polymers is

Correct AnswerverifiedShow Answer

What does HDPE mean?

Correct AnswerverifiedHigh-densi...View AnswerShow Answer

What is the name of the condensation copolymer formed from ethylene glycol (a diol-a molecule with two alcohol groups) and para-terephthalic acid (a diacid-a molecule with two carboxy groups) ?

Correct AnswerverifiedShow Answer

What is the process called to prepare a ceramic by heating a slurry of a powder of an inorganic substance in water to a very high temperature under pressure?

Correct AnswerverifiedShow Answer

What type of semiconductor is generated by adding small amounts of gallium to silicon?

Correct AnswerverifiedShow Answer

The type of polymerization that yields water as a byproduct is called ____________.

Correct AnswerverifiedShow Answer

What is the name of the industrial process in which sulfur (S8) is used to create linkages between individual polymer chains in rubber?

Correct AnswerverifiedShow Answer

Polymers where all the substituents are in the same relative orientation are called_______________.

Correct AnswerverifiedShow Answer

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The polymer formed from the monomer CH₂=CH-CN is

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Polyester,...
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High-densi...
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What is the name of the industrial process in which sulfur (S₈) is used to create linkages between individual polymer chains in rubber?

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