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  • Question
  • Molecular weight of polymers are in the range of


  • Options
  • A. 10 to 103
  • B. 102-107
  • C. 107-109
  • D. 109-1011

  • Correct Answer
  • 102-107 


  • Polymer Technology problems


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    • 1. Viscose rayon is

    • Options
    • A. cellulose nitrate
    • B. regenerated cellulose nitrate
    • C. regenerated cellulose acetate
    • D. none of these
    • Discuss
    • 2. Low pressure Zeigler process of polythene manufacture

    • Options
    • A. employs a pressure of 30 kgf/cm2.
    • B. achieves an yield of 95-98% based on ethylene.
    • C. produces very low density polythene.
    • D. does not use any catalyst for polymerisation.
    • Discuss
    • 3. Main constituent of cotton fibre is

    • Options
    • A. lignin
    • B. cellulose
    • C. starch
    • D. gelatine
    • Discuss
    • 4. Polyurathane can not be used for making

    • Options
    • A. mattresses & foam
    • B. coating material
    • C. adhesives
    • D. bottles
    • Discuss
    • 5. Polycaprolactum (Nylon - 6) is produced by the condensation polymerisation of caprolactum at 240-280°C in which the conversion of caprolactum is about __________ percent.

    • Options
    • A. 50
    • B. 75
    • C. 90
    • D. 99
    • Discuss
    • 6. Diphenylamine is added to rubber to

    • Options
    • A. valcanise it.
    • B. protect it from deterioration on exposure to air.
    • C. make it non-inflammable.
    • D. make it thermosetting.
    • Discuss
    • 7. Buna-S is also called

    • Options
    • A. polyurathane
    • B. SBR
    • C. teflon
    • D. bakelite
    • Discuss
    • 8. Thermoplastic resins usually

    • Options
    • A. remain hard as long as they are hot.
    • B. can not be reclaimed from waste.
    • C. permanent setting resins.
    • D. less brittle than thermosetting resins.
    • Discuss
    • 9. __________ are produced by reacting polybasic acid (e.g. phthalic anhydride) with polyhydric alcohol (e.g., glycerol).

    • Options
    • A. Unsaturated polyester
    • B. Alkyd resins
    • C. Saturated polyester
    • D. Amino resins
    • Discuss
    • 10. Hot drink (e.g, tea) cups are usually made of

    • Options
    • A. polystyrene
    • B. polythene
    • C. polypropylene
    • D. PVC
    • Discuss


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