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  • Question
  • Pick out the wrong statement.


  • Options
  • A. For the manufacture of styrene, the major raw materials are benzene and ethylene.
  • B. One inportant copolymer of styrene is SBR, which is widely used in the manufacture of automobile tyres.
  • C. Manufacture of phenol by chloroben-zene-eaustic process involves. The chlorination of benzene, causticisation and hydrolysis.
  • D. Phenol manufacture by chlorobenzene-caustic process is competitive even when low cost chlorine is not available.

  • Correct Answer
  • Phenol manufacture by chlorobenzene-caustic process is competitive even when low cost chlorine is not available. 


  • Polymer Technology problems


    Search Results


    • 1. Liners of bags are usually made of

    • Options
    • A. polythene
    • B. PVC
    • C. polypropylene
    • D. polyesters
    • Discuss
    • 2. __________ moulding is used for shaping of thermosetting plastics exclusively.

    • Options
    • A. Compression
    • B. Injection
    • C. Transfer
    • D. Extrusion
    • Discuss
    • 3. Starting material for the production of butadiene in India is

    • Options
    • A. naphthalene
    • B. benzol
    • C. ethyl alcohol
    • D. phthalic anhydride
    • Discuss
    • 4. The rate controlling step in the manufacture of silicone rubber is the

    • Options
    • A. polymer termination step.
    • B. condensation of siloxane to silicone.
    • C. initial hydrolysis of silicone monomer.
    • D. none of these.
    • Discuss
    • 5. Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitfile copolymer with butadiene based elastomer, is a/an

    • Options
    • A. rigid foam
    • B. engineering plastic
    • C. thermosetting polymer
    • D. spongy rubber
    • Discuss
    • 6. Which of the following is an elastomer?

    • Options
    • A. Thiokol
    • B. Phenol formaldehyde
    • C. Urea formaldehyde
    • D. Polystyrene
    • Discuss
    • 7. The inter particle forces between linear chains in nylon-66 are __________ bonds.

    • Options
    • A. hydrogen
    • B. covalant
    • C. ionic
    • D. none of these
    • Discuss
    • 8. Contact lenses for eyes are made of perspex, which is nothing but

    • Options
    • A. polymethylmethacrylate
    • B. polystyrene
    • C. unsaturated polyester
    • D. polypropylene
    • Discuss
    • 9. Poly Vinyl chloride (PVC) is a __________ material.

    • Options
    • A. thermoplastic
    • B. thermosetting
    • C. fibrous
    • D. chemically active
    • Discuss
    • 10. Which of the following is an inorganic polymer?

    • Options
    • A. Teflon
    • B. Perspex
    • C. Silicones
    • D. Bakelite
    • Discuss


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