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  • Question

  • Polyvinyl alcohol is used as a


  • Options
  • A. cation/anion exchanger.
  • B. water soluble adhesive.
  • C. textile fibre.
  • D. non-sticky coating on frying pans.

  • Correct Answer
  • water soluble adhesive. 

    • Polymer Technology problems

    Search Results

    • 1. Epoxy resin is a polymer containing two or more groups called epoxide group or ethoxyline group. It is a

    • Options
    • A. polyamide & an elastomer.
    • B. good adhesive.
    • C. surface coating agent.
    • D. both (b) and (c).
      • Discuss
    • 2. Which of the following additives are added to plastics to make it impervious to X-rays?

    • Options
    • A. Asbestos
    • B. Barium salt
    • C. Carborundum
    • D. Phthalic acid
      • Discuss
    • 3. Catalyst used in the production of high density polythene by low pressure Ziegler process is

    • Options
    • A. aluminium triethyl activated with TiCl4
    • B. platinum
    • C. molybdenum
    • D. Nickel
      • Discuss
    • 4. Which of the following polymers does not belong to the class of polyacrylate polymer?

    • Options
    • A. PMMA
    • B. Polyacrylonitrile
    • C. Polyethyl acrylate
    • D. None of these
      • Discuss
    • 5. Epoxy resins (i.e., epoxide polymers)

    • Options
    • A. are made by addition polymerisation reaction only.
    • B. contain an epoxy group ( ) at the ends of the polymer.
    • C. are cross-linked polymers only.
    • D. use emulsion polymerisation methods.
      • Discuss
    • 6. Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its

    • Options
    • A. tensile strength
    • B. chemical resistance
    • C. flexibility
    • D. all (a), (b) & (c)
      • Discuss
    • 7. Polymerisation product of C2F4 (carbon tetraflouride) is called P.T.F.E. (poly chloro tetra flouro ethylene). It is also called

    • Options
    • A. polyurethane
    • B. silicone rubber
    • C. teflon
    • D. epoxy resin
      • Discuss
    • 8. The conversion of caprolactum in the above case is about __________ percent.

    • Options
    • A. 25
    • B. 50
    • C. 70
    • D. 90
      • Discuss
    • 9. Polymerisation process in which two or more monomers of chemically different nature take part is called

    • Options
    • A. copolymerisation
    • B. addition polymerisation
    • C. chain polymerisation
    • D. none of these
      • Discuss
    • 10. Ebonite is a/an

    • Options
    • A. highly vulcanised rubber.
    • B. natural rubber.
    • C. unvulcanised raw rubber.
    • D. adhesive.
      • Discuss

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