Question 1

A(n) ________ liquid crystal is ordered in two dimensions.

Accepted Answer

The answer of A(n) ________ liquid crystal is ordered in...

Question 2

Which monomer may be used to form the following condensation polymer?

Accepted Answer

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

Question 3

What is meant by the prefix "poly"?

Accepted Answer

A)  Plastic 
B)  Polymer 
C)  From the tree Polytherium found in southeast Asia 
D)  Many 
E)  None of these choices is correct. 
A)  Plastic 
B)  Polymer 
C)  From the tree Polytherium found in southeast Asia 
D)  Many 
E)  None of these choices is correct.

Question 4

Polyethylene consisting primarily of unbranched chains is known as high-density polyethylene (HDPE).

Accepted Answer

A) True 
 B)False

Question 5

What name is given to a polymer in which the substituents alternate positions 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

Question 6

Which is NOT an example of a block copolymer formed between monomers A and B?

Accepted Answer

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

Question 7

The monomer for a polyester has the general formula of RCOOR'.

Accepted Answer

A) True 
 B)False

Question 8

Which one of these materials is a copolymer?

Accepted Answer

A)  Styrene-butadiene 
B)  Polyvinyl chloride 
C)  Polypropylene 
D)  Poly-cis-isoprene 
E)  Polyethylene 
A)  Styrene-butadiene 
B)  Polyvinyl chloride 
C)  Polypropylene 
D)  Poly-cis-isoprene 
E)  Polyethylene

Question 9

Materials with no resistance to the flow of electrons are called

Accepted Answer

A)  conductors. 
B)  insulators. 
C)  superconductors. 
D)  semiconductors. 
E)  nonconductors. 
A)  conductors. 
B)  insulators. 
C)  superconductors. 
D)  semiconductors. 
E)  nonconductors.

Question 10

Ceramics are usually formed by melting and then solidifying inorganic substances such as clays.

Accepted Answer

A) True 
 B)False

Question 11

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 12

A(n) ________ liquid crystal contains molecules ordered in one dimension only.

Accepted Answer

The answer of A(n) ________ liquid crystal contains molecules ordered...

Question 13

Liquid crystals exhibit properties or both liquids and gases.

Accepted Answer

A) True 
 B)False

Question 14

Ceramics are polymeric inorganic compounds that have low melting points.

Accepted Answer

A) True 
 B)False

Question 15

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)  Sulfonation 
A)  Rubberization 
B)  Vulcanization 
C)  Smelting 
D)  Sulfonafication 
E)  Sulfonation

Question 16

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

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)  Dexterity 
A)  Chirality 
B)  Handiness 
C)  Tacticity 
D)  Substituents 
E)  Dexterity

Question 18

Which polymer is a copolymer of a five-carbon sugar, four different bases (adenine, uracil, guanine, and cytosine), and phosphoric acid?

Accepted Answer

A)  ATP 
B)  ADP 
C)  a Protein 
D)  DNA 
E)  RNA 
A)  ATP 
B)  ADP 
C)  a Protein 
D)  DNA 
E)  RNA

Question 19

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

Accepted Answer

A)  the presence of   bonds. 
B)  the presence of two functional groups. 
C)  the presence of alkyl side chains. 
D)  the ability to form free radicals. 
E)  the presence of sulfur atoms. 
A)  the presence of   bonds. 
B)  the presence of two functional groups. 
C)  the presence of alkyl side chains. 
D)  the ability to form free radicals. 
E)  the presence of sulfur atoms.

Question 20

A protein is

Accepted Answer

A)  a saturated ester of glycerol. 
B)  a polysaccharide. 
C)  an aromatic hydrocarbon. 
D)  a polymer of amino acids. 
E)  one of the units making up a nucleic acid. 
A)  a saturated ester of glycerol. 
B)  a polysaccharide. 
C)  an aromatic hydrocarbon. 
D)  a polymer of amino acids. 
E)  one of the units making up a nucleic acid.

Exam 12: Modern Materials

A(n) ________ liquid crystal is ordered in two dimensions.

Which monomer may be used to form the following condensation polymer?

What is meant by the prefix "poly"?

Polyethylene consisting primarily of unbranched chains is known as high-density polyethylene (HDPE).

What name is given to a polymer in which the substituents alternate positions along the polymer chain?

Which is NOT an example of a block copolymer formed between monomers A and B?

The monomer for a polyester has the general formula of RCOOR'.

Which one of these materials is a copolymer?

Materials with no resistance to the flow of electrons are called

Ceramics are usually formed by melting and then solidifying inorganic substances such as clays.

Polymers where all the substituents are in the same relative orientation are called ________.

A(n) ________ liquid crystal contains molecules ordered in one dimension only.

Liquid crystals exhibit properties or both liquids and gases.

Ceramics are polymeric inorganic compounds that have low melting points.

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

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

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

Which polymer is a copolymer of a five-carbon sugar, four different bases (adenine, uracil, guanine, and cytosine), and phosphoric acid?

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

A protein is

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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?