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- Question
Styrene which is a monomer for the production of polystyrene, is commercially produced by the
Options- A. catalytic dehydrogenation of ethyl benzene.
- B. dehydration of ethyl alcohol followed by hydrogenation.
- C. reacting ethylene oxide with acetal-dehyde.
- D. fermentation of starch.
- Correct Answer
- catalytic dehydrogenation of ethyl benzene.
- 1. Bakelite (phenol-formaldehyde) resin can not be used as
Options- A. decorative paint.
- B. decorative laminates.
- C. electrical insulation.
- D. glass reinforced plastics. Discuss
- 2. Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation?
Options- A. PVC
- B. Bakelite
- C. PTFE
- D. Epoxy resin Discuss
- 3. Which of the following is not an elastomer?
Options- A. Polyisoprene
- B. Neoprene
- C. Nitrile-butadiene
- D. None of these Discuss
- 4. Rexin (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten
Options- A. teflon
- B. bakelite
- C. SBR
- D. PVC Discuss
- 5. __________ practically possess no elasticity.
Options- A. Vulcanite or ebonite
- B. Spandex fibre
- C. Polysulphide rubber
- D. Epoxy resin Discuss
- 6. Adipic acid is an intermediate in the manufacture of
Options- A. perspex
- B. nylon-66
- C. polystyrene
- D. bakelite Discuss
- 7. Polymers are
Options- A. micromolecules
- B. macromolecules
- C. sub-micromolecules
- D. none of these Discuss
- 8. Terylene is a/an
Options- A. addition polymer
- B. poly amide
- C. homopolymer
- D. none of these Discuss
- 9. __________ polythene is most prone to stress-cracking
Options- A. High density
- B. Low density
- C. Cross-linked
- D. Linear low density Discuss
- 10. Thermocole (expanded polystyrene) is not used for
Options- A. low temperature thermal insulation as in refrigerator and air conditioners.
- B. accoustic control and ceiling for building.
- C. high temperature thermal insulation in furnaces.
- D. packing of delicate electronic gadgets. Discuss
Polymer Technology problems
Search Results
Correct Answer: decorative paint.
Correct Answer: PVC
Correct Answer: None of these
Correct Answer: PVC
Correct Answer: Vulcanite or ebonite
Correct Answer: nylon-66
Correct Answer: macromolecules
Correct Answer: none of these
Correct Answer: High density
Correct Answer: high temperature thermal insulation in furnaces.
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