CRASH COURSE MHT-CET CHEMISTRY

28. Polymers

1. Which one of the following is a condensation polymer?

(a) Nylon

(b) Polythene

(c) PVC

(d) Teflon

2. Which one of the following is an addition polymer?

(a) Bakelite

(b) Nylon-6,6

(c) Polystyrene

(d) Terylene

3. Which of the following is a copolymer?

(a) Orlon

(b) Teflon

(c) \(\mathrm{PVC}\)

(d) PHB V

4. The monomer used to prepare superglue is

(a) vinyl chloride

(b) methyl \(\alpha\)-cyanoacrylate

(c) p-phenylene diamine

(d) diethyl carbonate

5. A polymer of butadiene and Acrylonitrile is called.

(a) Buna-S

(b) Buna- \(\mathrm{N}\)

(c) Buna-B

(d) Buna-A

6. Natural rubber is a polymer of

(a) styrene

(b) butadiene

(c) vinyl chloride

(d) isoprene

7. In which of the following pairs both are copolymers?

(a) PHBV, Bakelite

(b) Polythene, terylene

(c) Poly acrylonitrile, nylon-6,6

(d) Polystyrene, melamine

8. The polymer used in paints is

(a) Nylon

(b) Glyptal

(c) Neoprene

(d) Terylene

9. Which of the following contains biodegradable polymers only?

(a) Cellulose, dextron, PHBV

(b) Starch, PHBV, PVC

(c) Bakelite, nylon-2-nylon-6, nylon-6,6

(d) Cellulose, starch, terylene

10. Thermosetting polymer is

(a) Nylon-6

(b) Nylon-6,6

(c) Bakelite

(d) SBR

11. Nylon thread contains the polymer

(a) polyamide

(b) polyvinyl

(c) polyester

(d) polyethylene

12. Polythene, PVC, teflon and neoprene are all

(a) monomers

(b) homopolymers

(c) copolymers

(d) condensation polymers

13. Which one of the following is NOT a biodegradable polymer?

(a) Starch

(b) Cellulose

(c) Dextron

(d) Decron

14. The polymer used in making blankets (artificial wool) is

(a) polyester

(b) polyacrylonitrile

(c) polythene

(d) polystyrene

15. Trans-poly-isoprene is called

(a) Glyptal

(b) Gutta-Percha

(c) Melamine

(d) Buna-S

16. Buna-S is a

(a) monomer

(b) polymer

(c) copolymer

(d) dimer

17. Glucose is a monomer of

(a) proteins

(b) rubber

(c) plastics

(d) starch and cellulose

18. Which of the following is natural polymer?

(a) Bakelite

(b) Nylon

(c) Proteins

(d) PVC

19. Which of the following is a synthetic polymer?

(a) Starch

(b) Cellulose

(c) RNA

(d) Terelyne

20. Which of the following is an example of additional polymerisation?

(a) Proteins

(b) Teflon

(c) Nylon-66

(d) Glyptal

21. Which of the following is an example of condensation polymerisation?

(a) \(\mathrm{PVC}\)

(b) BUNA rubber

(c) Dacron

(d) Lutrex

22. Which of the following is an example of elastomers?

(a) Rubber

(b) Nylon-66

(c) PVC

(d) Bakelite

23. Which of the following is an example of fibres polymer?

(a) Rubber

(b) Nylon-66

(c) PVC

(d) Bakelite

24. Which of the following is an example of thermoplastic polymer?

(a) Rubber

(b) Nylon-66

(c) \(\mathrm{PVC}\)

(d) Bakelite

25. Which of the following is an example of thermosetting polymer?

(a) Rubber

(b) Nylon-66

(c) PVC

(d) Bakelite

26. The repeating unit of teflon is


27. The monomer of neoprene is

(a) chloroprene

(b) styrene

(c) vinyl chloride

(d) linear polymer

28. The repeating unit of polyacrylonitrile is


29. Which of the following structures represents terylene?


30. Which of the following structures represent nylon-66?


31. Glyptal resins is formed from the monomers

(a) adipic acid and hexamethylene diamine

(b) ethylene glycol and phthalic acid

(c) phenol and formaldehyde

(d) ethylene glycol and terephthalic acid

32. Nylon-6, 6 is formed from the monomers

(a) adipic acid and hexamethylenediamine

(b) ethylene glycol and phthalic acid

(c) phenol and formaldehyde

(d) ethylene glycol and terephthalic acid

33. Bakelite is formed from the monomers

(a) adipic acid and hexamethylenediamine

(b) ethylene glycol and phthalic acid

(c) phenol and formaldehyde

(d) ethylene glycol and terephthalic acid

34. Tereylene is formed from the monomers

(a) adipic acid and hexamethylenediamine

(b) ethylene glycol and phthalic acid

(c) phenol and formaldehyde

(d) ethylene glycol and terephthalic acid

35. Melamine formaldehyde resin is

(a) dimer of melamine and formaldehyde

(b) an additional polymer

(c) a copolymer

(d) a fibre type polymer

36. The monomer of nylon-6 is

(a) cyclohexane

(b) caprolactam

(c) ethylene glycol

(d) ammo acid

37. Which of the following polymers has ester linkages?

(a) Nylon

(b) Bakelite

(c) Terylene

(d) PVC

38. Which of the following polymers has amide linkages?

(a) Nylon

(b) PVC

(c) Terylene

(d) Bakelite

39. The process of vulcanization makes rubber

(a) soluble in water

(b) hard

(c) soft

(d) less elastic

40. Isoprene is a monomer of

(a) starch

(b) synthetic rubber

(c) synthetic nubber

(d) \(\mathrm{PVC}\)

41. Which one of the following polymers does not involve cross linkages?

(a) Bakelite

(b) Melamine

(c) Polythene

(d) Vucanized rubber

42. PVC stands for

(a) Polyvinyl carbinol

(b) Polyvinyl chloral

(c) Polyvinyl chloride

(d) Polyvinyl chloroform

43. Which of the following is isoprene?


44. One of the constituents in the preparation of thiokol is

(a) 1,2-dichloroethane

(b) isoprene

(c) chloroprene

(d) sulphur

45. Thiokol is a

(a) fibre

(b) plastic

(c) rubber

(d) detergent

46. Which of the following is chloroprene?

(a) \(\underset{\mathrm{Cl}}{\mathrm{CH}}=\mathrm{CH}_2-\mathrm{CH}=\mathrm{CH}_2\)

(b)

<smiles>C=CC(=C)Cl</smiles>

(c)

<smiles>CC=C(C)Cl</smiles>

(d)

<smiles>CCC(C)Cl</smiles>

47. Ziegler catalyst is

(a) chromium oxide supported over silica

(b) triethyl aluminium and titanium tetrachloride dispersed in an inert solvent

(c) alumina

(d) plantinum/paladium

48. Which of the following polymers has the empirical formula identical with that of its monomer?

(a) Teflon

(b) Nylon-66

(c) Dacron

(d) Bakelite

49. Which of the following polymers may be classified as chain growth polymers?

(a) Nylon-66

(b) Bakelite

(c) Teflon

(d) Polyester

50. Which of the following polymers may be classified as step growth polymer?

(a) Teflon

(b) PVC

(c) Polyethene

(d) Nylon-66