Discussion
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- Question
The monomer of natural rubber is
Options- A. DMT
- B. isoprene
- C. 2 methyl-1-propene
- D. both (b) and (c)
- Correct Answer
- both (b) and (c)
- 1. Polycaprolactum is also known as
Options- A. nylon-66
- B. nylon-6
- C. teflon
- D. SBR Discuss
- 2. Teflon is
Options- A. phenol formaldehyde
- B. an inorganic polymer
- C. polytetra florouethylene (PTFE)
- D. a monomer Discuss
- 3. Polythene is a/an
Options- A. addition polymerisation product.
- B. condensation polymerisation product.
- C. thermosetting material.
- D. none of these. Discuss
- 4. 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 Discuss
- 5. In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.
Options- A. polythene
- B. PVC
- C. rayon
- D. polyvinyl acetate Discuss
- 6. Phthalic anhydride is used
Options- A. in making PVC
- B. as plasticisers
- C. in insecticides manufacture
- D. for making nylon-6 Discuss
- 7. 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. Discuss
- 8. __________ is produced by polymerisation of chloroprene.
Options- A. Thiokol (a polysulphide rubber)
- B. Butyl rubber
- C. Neoprene
- D. Polyurathane rubber Discuss
- 9. 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 Discuss
- 10. The starting material used for the manufacture of caprolactum is
Options- A. ethyl benzene
- B. cyclohexane
- C. ethylene glycol
- D. DMT Discuss
Polymer Technology problems
Search Results
Correct Answer: nylon-6
Correct Answer: polytetra florouethylene (PTFE)
Correct Answer: addition polymerisation product.
Correct Answer: polypropylene
Correct Answer: PVC
Correct Answer: as plasticisers
Correct Answer: converts its plasticity into elasticity.
Correct Answer: Neoprene
Correct Answer: 50000
Correct Answer: cyclohexane
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