Discussion
Home ‣ Chemical Engineering ‣ Polymer Technology Comments
- Question
__________ 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
- Correct Answer
- Resilience
- 1. Commercial production of polypropylene employs __________ polymerisation.
Options- A. emulsion
- B. suspension
- C. solution
- D. bulk Discuss
- 2. Condensation polymerisation of __________ produces bakelite.
Options- A. propylene
- B. phenol & formaldehyde
- C. phenol & acetaldehyde
- D. urea & formaldehyde Discuss
- 3. Which of the following is not a condensation polymer?
Options- A. Bakelite
- B. Melamine polymer
- C. Polymethylmethacrylate (PMMA)
- D. None of these Discuss
- 4. Terylene is
Options- A. same as dacron
- B. a polyester
- C. both(a) & (b)
- D. neither (a) nor (b) Discuss
- 5. 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. Discuss
- 6. Acrylonitrile is mainly used in the __________ industry.
Options- A. polymer
- B. printing
- C. dyeing
- D. photographic Discuss
- 7. __________ is not a condensation polymer.
Options- A. Teflon
- B. Nylon-66
- C. Dacron
- D. Polystyrene Discuss
- 8. Dacron is a
Options- A. condensation polymerisation product of hexamethylene diamine and adipic acid.
- B. condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol.
- C. thermosetting material.
- D. none of these. Discuss
- 9. Styrene butadiene rubber (SBR) is
Options- A. a natural rubber.
- B. another name of silicone rubber.
- C. a synthetic polymer.
- D. a synthetic monomer. Discuss
- 10. Which of the following is not a natural fibre?
Options- A. Silk
- B. Viscose rayon
- C. Wool
- D. Cotton Discuss
Polymer Technology problems
Search Results
Correct Answer: solution
Correct Answer: phenol & formaldehyde
Correct Answer: Polymethylmethacrylate (PMMA)
Correct Answer: both(a) & (b)
Correct Answer: Polymers made of only one monomer is called homopolymer.
Correct Answer: polymer
Correct Answer: Teflon
Correct Answer: none of these.
Correct Answer: a synthetic polymer.
Correct Answer: Viscose rayon
Comments
There are no comments.More in Chemical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.