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  • Question

  • Teflon is


  • Options
  • A. phenol formaldehyde
  • B. an inorganic polymer
  • C. polytetra florouethylene (PTFE)
  • D. a monomer

  • Correct Answer
  • polytetra florouethylene (PTFE) 

    • Polymer Technology problems

    Search Results

    • 1. Polythene is a/an

    • Options
    • A. addition polymerisation product.
    • B. condensation polymerisation product.
    • C. thermosetting material.
    • D. none of these.
      • Discuss
    • 2. 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
    • 3. 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
    • 4. A copolymer of vinyl and vinylidine chloride is called

    • Options
    • A. treylene
    • B. orlon
    • C. saran
    • D. dacron
      • Discuss
    • 5. Molecular weights of plastics ranges from

    • Options
    • A. 1000 to 5000
    • B. 5000 to 1000
    • C. 20000 to 25000
    • D. 109 to l011
      • Discuss
    • 6. Polycaprolactum is also known as

    • Options
    • A. nylon-66
    • B. nylon-6
    • C. teflon
    • D. SBR
      • Discuss
    • 7. The monomer of natural rubber is

    • Options
    • A. DMT
    • B. isoprene
    • C. 2 methyl-1-propene
    • D. both (b) and (c)
      • Discuss
    • 8. Phthalic anhydride is used

    • Options
    • A. in making PVC
    • B. as plasticisers
    • C. in insecticides manufacture
    • D. for making nylon-6
      • Discuss
    • 9. 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
    • 10. __________ is produced by polymerisation of chloroprene.

    • Options
    • A. Thiokol (a polysulphide rubber)
    • B. Butyl rubber
    • C. Neoprene
    • D. Polyurathane rubber
      • Discuss

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