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Chemical Engineering
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Polymer Technology
Comments
Question
Phthalic anhydride is used
Options
A. in making PVC
B. as plasticisers
C. in insecticides manufacture
D. for making nylon-6
Correct Answer
as plasticisers
Polymer Technology problems
Search Results
1. The monomer of natural rubber is
Options
A. DMT
B. isoprene
C. 2 methyl-1-propene
D. both (b) and (c)
Show Answer
Scratch Pad
Discuss
Correct Answer: both (b) and (c)
2. Polycaprolactum is also known as
Options
A. nylon-66
B. nylon-6
C. teflon
D. SBR
Show Answer
Scratch Pad
Discuss
Correct Answer: nylon-6
3. Teflon is
Options
A. phenol formaldehyde
B. an inorganic polymer
C. polytetra florouethylene (PTFE)
D. a monomer
Show Answer
Scratch Pad
Discuss
Correct Answer: polytetra florouethylene (PTFE)
4. Polythene is a/an
Options
A. addition polymerisation product.
B. condensation polymerisation product.
C. thermosetting material.
D. none of these.
Show Answer
Scratch Pad
Discuss
Correct Answer: addition polymerisation product.
5. Benzoyl chloride is not used as a catalyst in the manufacture of
Options
A. polystyrene
B. polyvinyl acetate
C. polypropylene
D. polyvinyl chloride-co-vinylacetate
Show Answer
Scratch Pad
Discuss
Correct Answer: polypropylene
6. Vulcanisation of rubber
Options
A. decreases its tensile strength.
B. increases its ozone & oxygen reactivity.
C. increases its oil & solvent resistance.
D. converts its plasticity into elasticity.
Show Answer
Scratch Pad
Discuss
Correct Answer: converts its plasticity into elasticity.
7. __________ is produced by polymerisation of chloroprene.
Options
A. Thiokol (a polysulphide rubber)
B. Butyl rubber
C. Neoprene
D. Polyurathane rubber
Show Answer
Scratch Pad
Discuss
Correct Answer: Neoprene
8. Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800?
Options
A. 50000
B. 51600
C. 49200
D. 50800
Show Answer
Scratch Pad
Discuss
Correct Answer: 50000
9. The starting material used for the manufacture of caprolactum is
Options
A. ethyl benzene
B. cyclohexane
C. ethylene glycol
D. DMT
Show Answer
Scratch Pad
Discuss
Correct Answer: cyclohexane
10. __________ is a copolymer.
Options
A. styrene butadiene rubber (SBR)
B. Neoprene
C. PVC
D. None of these
Show Answer
Scratch Pad
Discuss
Correct Answer: styrene butadiene rubber (SBR)
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