Discussion
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- Question
Pickout the wrong statement.
Options- A. Polymers made of only one monomer is called homopolymer.
- B. Polymers made of more than one monomer is called copolymer or mixed polymer.
- C. Vulcanised rubber is more elastic than natural rubber.
- D. The intermoleculer forces in ther-mosplastic polymers are intermediate to that of elastomers & fibres.
- Correct Answer
- Polymers made of only one monomer is called homopolymer.
- 1. Styrene butadiene rubber is commercially manufactured by
Options- A. bulk polymerisation
- B. suspension polymerisation
- C. solution polymerisation
- D. emulsion polymerisation Discuss
- 2. Rain coats are made of
Options- A. neoprene
- B. PVC
- C. polyurathane
- D. SBR Discuss
- 3. The only natural thermoplastic resin, which is a product of animal life is
Options- A. rosin
- B. shellac
- C. amber
- D. copal Discuss
- 4. Nylon 6, 10 which is used for bristles making is superior to nylon 6, 6 due to its lower water absorption capacity, is a/an
Options- A. polyester
- B. polyamide
- C. polyisoprene
- D. polystyrene Discuss
- 5. Rayon is a __________ fibre.
Options- A. cellulosic
- B. polyamide
- C. polyester
- D. natural Discuss
- 6. Terylene is
Options- A. same as dacron
- B. a polyester
- C. both(a) & (b)
- D. neither (a) nor (b) Discuss
- 7. Which of the following is not a condensation polymer?
Options- A. Bakelite
- B. Melamine polymer
- C. Polymethylmethacrylate (PMMA)
- D. None of these Discuss
- 8. Condensation polymerisation of __________ produces bakelite.
Options- A. propylene
- B. phenol & formaldehyde
- C. phenol & acetaldehyde
- D. urea & formaldehyde Discuss
- 9. Commercial production of polypropylene employs __________ polymerisation.
Options- A. emulsion
- B. suspension
- C. solution
- D. bulk Discuss
- 10. __________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR.
Options- A. Percent elongation
- B. Resilience
- C. Freezing point
- D. Strength Discuss
Polymer Technology problems
Search Results
Correct Answer: emulsion polymerisation
Correct Answer: PVC
Correct Answer: shellac
Correct Answer: polyamide
Correct Answer: cellulosic
Correct Answer: both(a) & (b)
Correct Answer: Polymethylmethacrylate (PMMA)
Correct Answer: phenol & formaldehyde
Correct Answer: solution
Correct Answer: Resilience
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