Question 1

Ceramics are polymeric inorganic compounds that have low melting points.

Accepted Answer

A) True 
 B)False

Question 2

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 3

Liquid crystals exhibit properties or both liquids and gases.

Accepted Answer

A) True 
 B)False

Question 4

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 E)
G) All of the above

Question 5

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) B) and E)
G) C) and D)

Question 6

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.F) B) and C)
G) A) and B)

Question 7

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)   RNAF) All of the above
G) A) and E)

Question 8

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.F) A) and B)
G) A) and C)

Question 9

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-F) D) and E)
G) C) and E)

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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)   SyndiotacticF) None of the above
G) A) and D)

Question 12

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

Accepted Answer

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

Question 13

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

Question 14

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) All of the above
F) None of the above

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

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

Accepted Answer

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

Question 17

Materials with no resistance to the flow of electrons are called

Accepted Answer

A)   conductors.
B)   insulators.
C)   superconductors.
D)   semiconductors.
E)   nonconductors.F) None of the above
G) A) and C)

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

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

Question 20

Which one of these materials is a copolymer?

Accepted Answer

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

Exam 12: Modern Materials

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

Ceramics are polymeric inorganic compounds that have low melting points.

Correct AnswerverifiedShow Answer

Liquid crystals exhibit properties or both liquids and gases.

Correct AnswerverifiedShow Answer

Which one of these materials is a copolymer?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Materials with no resistance to the flow of electrons are called

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A protein is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is meant by the prefix "poly"?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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 Answer
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