Polymers
Q. What is the main characteristic of elastomers?
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A.
Brittle
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B.
Elastic
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C.
Rigid
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D.
Transparent
Solution
Elastomers are characterized by their elastic properties, allowing them to stretch and return to their original shape.
Correct Answer: B — Elastic
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Q. What is the main component of natural rubber?
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A.
Polyisoprene
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B.
Polystyrene
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C.
Polyethylene
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D.
Polyvinyl acetate
Solution
Natural rubber is primarily composed of polyisoprene, which is derived from latex.
Correct Answer: A — Polyisoprene
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Q. What is the monomer of polyethylene?
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A.
Ethylene
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B.
Propylene
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C.
Butylene
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D.
Styrene
Solution
Polyethylene is made from the polymerization of ethylene monomers.
Correct Answer: A — Ethylene
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Q. What is the monomer of polystyrene?
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A.
Ethylene
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B.
Styrene
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C.
Propylene
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D.
Vinyl chloride
Solution
The monomer of polystyrene is styrene, which polymerizes to form polystyrene.
Correct Answer: B — Styrene
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Q. What is the primary use of polyethylene?
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A.
Insulation
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B.
Packaging
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C.
Textiles
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D.
Adhesives
Solution
Polyethylene is primarily used in packaging due to its flexibility and durability.
Correct Answer: B — Packaging
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Q. What is the primary use of polystyrene?
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A.
Insulation
-
B.
Packaging
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C.
Textiles
-
D.
Adhesives
Solution
Polystyrene is widely used in packaging materials due to its lightweight and cushioning properties.
Correct Answer: B — Packaging
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Q. What is the process of forming a polymer from monomers called?
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A.
Polymerization
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B.
Condensation
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C.
Sublimation
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D.
Depolymerization
Solution
The process of forming a polymer from monomers is called polymerization.
Correct Answer: A — Polymerization
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Q. What type of bond is primarily responsible for the strength of polymers?
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A.
Ionic bond
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B.
Covalent bond
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C.
Hydrogen bond
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D.
Metallic bond
Solution
Covalent bonds are primarily responsible for the strength and stability of polymer chains.
Correct Answer: B — Covalent bond
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Q. What type of bond is primarily responsible for the structure of polymers?
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A.
Ionic bond
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B.
Covalent bond
-
C.
Hydrogen bond
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D.
Metallic bond
Solution
Covalent bonds are primarily responsible for the structure of polymers, linking monomers together.
Correct Answer: B — Covalent bond
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Q. What type of polymer is nylon?
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A.
Addition polymer
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B.
Condensation polymer
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C.
Natural polymer
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D.
Composite polymer
Solution
Nylon is a condensation polymer formed from the reaction of diamines and dicarboxylic acids.
Correct Answer: B — Condensation polymer
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Q. What type of structure do most natural polymers have?
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A.
Linear
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B.
Branched
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C.
Cross-linked
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D.
Network
Solution
Most natural polymers, like cellulose, have a linear structure.
Correct Answer: A — Linear
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Q. Which of the following is a characteristic of elastomers?
-
A.
Brittle
-
B.
Rigid
-
C.
Elastic
-
D.
Conductive
Solution
Elastomers are known for their elastic properties, allowing them to stretch and return to their original shape.
Correct Answer: C — Elastic
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Q. Which of the following is a common use of PVC?
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A.
Clothing
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B.
Pipes
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C.
Food packaging
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D.
Adhesives
Solution
PVC (Polyvinyl Chloride) is commonly used in the production of pipes due to its durability and resistance to corrosion.
Correct Answer: B — Pipes
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Q. Which of the following is a synthetic polymer?
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A.
Rubber
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B.
Silk
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C.
Wool
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D.
Polyvinyl chloride
Solution
Polyvinyl chloride (PVC) is a synthetic polymer commonly used in construction and plumbing.
Correct Answer: D — Polyvinyl chloride
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Q. Which of the following is a thermosetting polymer?
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A.
Polyethylene
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B.
Polystyrene
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C.
Bakelite
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D.
PVC
Solution
Bakelite is a thermosetting polymer, while the others are thermoplastics.
Correct Answer: C — Bakelite
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Q. Which of the following is an example of a condensation polymer? (2023)
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A.
Polyethylene
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B.
Nylon-6,6
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C.
Polystyrene
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D.
Polyvinyl chloride
Solution
Nylon-6,6 is a condensation polymer formed by the reaction of hexamethylenediamine and adipic acid.
Correct Answer: B — Nylon-6,6
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Q. Which polymer is commonly used in 3D printing?
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A.
PLA
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B.
PVC
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C.
Nylon
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D.
Polyethylene
Solution
PLA (Polylactic Acid) is a commonly used polymer in 3D printing due to its ease of use and biodegradability.
Correct Answer: A — PLA
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Q. Which polymer is known for its high resistance to heat?
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A.
Polyethylene
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B.
Teflon
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C.
Polypropylene
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D.
PVC
Solution
Teflon (PTFE) is known for its high heat resistance and non-stick properties.
Correct Answer: B — Teflon
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