Question 1

A thermoplastic polymer can be melted and reshaped or heated and bent.

Accepted Answer

A) True 
 B)False

Question 2

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-gel 
A)  Sintering 
B)  Roasting 
C)  Firing 
D)  Stonewaring 
E)  Sol-gel

Question 3

Which of the following polymers is used in plastic food bags and wraps?

Accepted Answer

A)  LDPE 
B)  PVC 
C)  Polystyrene 
D)  HDPE 
E)  Polypropylene 
A)  LDPE 
B)  PVC 
C)  Polystyrene 
D)  HDPE 
E)  Polypropylene

Question 4

Which of these polymers is used in pipes and fittings?

Accepted Answer

A)  Teflon 
B)  Polystyrene 
C)  Dacron 
D)  Nylon 6,6 
E)  PVC 
A)  Teflon 
B)  Polystyrene 
C)  Dacron 
D)  Nylon 6,6 
E)  PVC

Question 5

Which condensation polymer is used in bulletproof vests?

Accepted Answer

A)  Nylon 6,6 
B)  Kevlar 
C)  Polystyrene 
D)  Dacron 
E)  Styrofoam 
A)  Nylon 6,6 
B)  Kevlar 
C)  Polystyrene 
D)  Dacron 
E)  Styrofoam

Question 6

Liquid crystals are anisotropic, because the properties they display depend on the direction (orientation) of the measurement.

Accepted Answer

A) True 
 B)False

Question 7

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. 
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.

Question 8

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. 
A)  Implants 
B)  Prosthetics 
C)  Wound dressings 
D)  All of these choices are correct 
E)  None of these choices is correct.

Question 9

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-gel 
A)  Sintering 
B)  Roasting 
C)  Firing 
D)  Stonewaring 
E)  Sol-gel

Question 10

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)  copolymer 
A)  addition 
B)  natural 
C)  condensation 
D)  elimination 
E)  copolymer

Question 11

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

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 12

Polystyrene with air or gas blown into the solid is the main component in Styrofoam.

Accepted Answer

A) True 
 B)False

Question 13

What is one of the most common uses of polyvinyl chloride?

Accepted Answer

A)  2-L soda bottles 
B)  Styrofoam cups 
C)  Plastic pipes 
D)  Plastic food bags 
E)  Plastic garbage cans 
A)  2-L soda bottles 
B)  Styrofoam cups 
C)  Plastic pipes 
D)  Plastic food bags 
E)  Plastic garbage cans

Question 14

Which of the following contains a phenyl group?

Accepted Answer

A)  Polyethylene 
B)  PVC 
C)  Polystyrene 
D)  Nylon 6,6 
E)  Teflon 
A)  Polyethylene 
B)  PVC 
C)  Polystyrene 
D)  Nylon 6,6 
E)  Teflon

Question 15

________ 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 16

________-________ in rubber makes the rubber much stronger and rigid than natural polyisoprene.

Accepted Answer

The answer of ________-________ in rubber makes the rubber much...

Question 17

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. 
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.

Question 18

________ ________ ________ 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 19

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

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. 
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.

Question 20

What name is given to a polymer in which the substituents are oriented randomly along the polymer chain?

Accepted Answer

A)  Rotatory 
B)  Atactic 
C)  Swapper 
D)  Isotactic 
E)  Syndiotactic 
A)  Rotatory 
B)  Atactic 
C)  Swapper 
D)  Isotactic 
E)  Syndiotactic

Exam 12: Modern Materials

A thermoplastic polymer can be melted and reshaped or heated and bent.

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?

Which of the following polymers is used in plastic food bags and wraps?

Which of these polymers is used in pipes and fittings?

Which condensation polymer is used in bulletproof vests?

Liquid crystals are anisotropic, because the properties they display depend on the direction (orientation) of the measurement.

Vulcanization

Which of the following is a medical application using polymers?

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?

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.

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

Polystyrene with air or gas blown into the solid is the main component in Styrofoam.

What is one of the most common uses of polyvinyl chloride?

Which of the following contains a phenyl group?

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

________-________ in rubber makes the rubber much stronger and rigid than natural polyisoprene.

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

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

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

What name is given to a polymer in which the substituents are oriented randomly along the polymer chain?

Chemistry: the Central Science

Atoms, Molecules, and Ions

Stoichiometry: Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

- in rubber makes the rubber much stronger and rigid than natural polyisoprene.

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