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question_answer1) Give examples of semi synthetic polymers.
question_answer2) Which type of polymer nylon-6.6, is ?
question_answer3) Give example of thermoplastic.
question_answer4) Give the name of monomer ofnylon-2, nylon-6.
question_answer5) What is the significance of number 6.6 and 6 in nylon-6.6 and nylon-6?
question_answer6) What is novolac?
question_answer7) What is bakelite?
question_answer8) Which type of polyesters are biodegradable?
question_answer9) Name the polymer used for medicinal capsules.
question_answer10) Name the polymer used in the insulation of electrical wire.
question_answer11) Name the polymer used in making non-stick kitchen wares.
question_answer12) Name a polymer used as a substitute for wool.
question_answer13) Name a polymer used in making unbreakable crockery.
question_answer14) Name the polymer used in making C.D.
question_answer15) Name a polymer used in the manufacture of paints and lacquers.
question_answer16) Write structure and name of the monomer of the following polymers (a) Polythene (b) Teflon (c) Orion (d) Polypropylene (e) Polyvinylchloride (f) Polystyrene.
question_answer17) Write structure and name of the monomer of the following polymers (a) Nylon-6,6 (b) Nylon-6 (c) Urea formaldehyde resin.
question_answer18) Write structure and name of the monomer of the following polymers (a) Terylene (dacron) (b) Bakelite (c) Melamine (d) Glyptal.
question_answer19) Write structure and name of the monomer of the following polymers (a) SBR (Buna-S) (b) Natural rubber (c) Neoprene (d) Buna-N
question_answer20) Name the monomer of (a) PHBV and (b) Nylon-2, Nylon-6.
question_answer21) Name the catalyst used in free radical addition polymerization as initiator.
question_answer22) Name the catalyst used in the preparation of high density polythene.
question_answer23) Name the catalyst used in the preparation of low density polythene.
question_answer24) What is difference between novolac and bakelite?
question_answer25) What percentage of sulphur is used to obtain tyre rubber from natural rubber?
question_answer26) What is the role of sulphur in the vulcanisation of rubber
question_answer27) Give one use of novolac.
question_answer28) Give chemical name of orlon.
question_answer29) Name the polymer used for making handle of pressure cooker.
question_answer30) What is the role of benzoyl peroxide in the polymerization of ethene?
question_answer31) Name the polymer of phthalic acid and ethylene ?
question_answer32) Write the reaction of preparation of terylene.
question_answer33) What are macromolecules?
question_answer34) Define poly metrication.
question_answer35) What are polymers?
question_answer36) How are polymers classified on the basis of source?
question_answer37) How are polymers classified on the basis of structure.
question_answer38) Explain the term homo polymer.
question_answer39) Define copolymer. Give example.
question_answer40) What are addition polymers? Give example.
question_answer41) What are elastomers?
question_answer42) Define fibres.
question_answer43) What are thermoplastics?
question_answer44) What are thermosetting polymers?
question_answer45) Give difference between thermoplastic and the ermosetting plastics.
question_answer46) Explain with example chain growth polymerization.
question_answer47) Explain with example step growth polymerisation.
question_answer48) How is low density polythene prepared?
question_answer49) How is high density polythene prepared?
question_answer50) What is vulcanisation of rubber?
question_answer51) What are biodegradable polymers?
question_answer52) What are the bad effects of non-biodegradable polymers?
question_answer53) What are biopolymers?
question_answer54) How does vulcanisation improve the quality of rubber?
question_answer55) explain the structure of natural rubber. Name its monomer units.
question_answer56) How will you differentiate between low density and high density polythene?
question_answer57) Give the uses of low density and high density polythene.
question_answer58) What is synthetic rubber? Give examples.
question_answer59) What are polyamide polymers? Give example.
question_answer60) What are polyester polymers? Give example.
question_answer61) Classify the following as thermoplastic and thermosetting polymers. Bakelite, urea-formaldehyde resin, polythene, polystyrene, polyvinyl chloride.
question_answer62) Classify the following as elastomers and fibres nylon-6.6, terylene, buna-S, buna-N
question_answer63) Arrange the following polymers in order of increasing intermolecular force. Bakelite, Nylon-6,6, Polythene, Neoprene.
question_answer64) Give the preparation and one use of neoprene.
question_answer65) How is PVC prepared? Give its uses.
question_answer66) How polymers are different from macromolecules? Explain with example.
question_answer67) Explain the free radical mechanism of addition polymerization.
question_answer68) Differentiate between low density and high density polythene.
question_answer69) Why always purest monomer is used in free radical polymerisation?
question_answer70) Which property is used to determine the molecular mass of polymers?
question_answer71) Which type of polymerisation gives a polymer containing carbon atoms only in the main chain?
question_answer72) Which type of polymerisation gives a polymer containing hetero atoms?
question_answer73) In bakelite the benzene rings are linked through group at o - and p - positions. Why?
question_answer74) How will you account for the fact that polythene with linear chains is high density and that with branched chain is low density polymer?
question_answer75) Name a substance which inhibits free radical polymerisation.
question_answer76) To which class of polymers does Nylon-66 belong?
question_answer77) What is mode of free radical polymerisation in alkenes?
question_answer78) Write the structures of the monomers used for getting the following polymers? (a) PVC (b) Teflon (c) PMMA
question_answer79) Why should one always use purest monomer in free radical polymerisation?
question_answer80) How does the presence of carbon tetrachloride influence the course of vinylic free radical polymerisation? Explain with example.
question_answer81) Explain how does 1, 3-butadiene polymerise by different routes.
question_answer82) Why does styrene undergo anionic polymerisation easily?
question_answer83) Why is cationic polymerisation preferred in case of vinylic monomers containing electron donating groups?
question_answer84) Depict a free radical mode of addition polymerisation in isoprene.
question_answer85) Why are the numbers 66 and 6 put in the names of nylon 66 and nylon 6?
question_answer86) What is the difference between thermosetting and thermoplastic polymers?
question_answer87) How is bakelite formed? Explain the reactions with equations.
question_answer88) Polymers are always macromolecules but macromolecules are not always polymers. Explain.
question_answer89) Can a co-polymer be formed both in addition and condensation polymerisation?
question_answer90) Explain how does 1, 3-butadiene polymerise by different routes.
question_answer91) Are polyesters and polyacrylates same? Justify your answer.
question_answer92) Will you prefer to polymerise acrylonitrile under anionic or cationic polymerisation conditions? Explain your choice.
question_answer93) Write the structures of the monomers of the following polymers : (a) (b)
question_answer94) Draw the repeating structural units of the step-growth polymers you would expect to obtain from the following reactions. (a) \[BrC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}Br\]\[+HOC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}OH\xrightarrow{Base}\] (b) \[HOC{{H}_{2}}C{{H}_{2}}OH+HOOC{{(C{{H}_{2}})}_{6}}COOH\xrightarrow{{{H}^{+}}}\]
question_answer95) (a) Is a homo polymer or a copolymer? (b) Is it an addition or condensation polymer?
question_answer96) (a) Can a copolymer be formed in both addition and condensation polymerization? Explain. (b) Can a homo polymer be formed in both addition and condensation polymerization? Explain.
question_answer97) How does the presence of benzoquinone inhibit the free radical polymerization of a vinyl derivative?
question_answer98) Differentiate the following pairs of polymers based on the property mentioned against each. (i) Novolac and bakelite (structure). (ii) Buna-S and terylene (intermolecular forces of attraction).
question_answer99) State the significance of numbers 6 and 6, 6 in the polymer names nylon-6 and nylon-6, 6. or In nylon 6, 6 what does the designation 6, 6 mean.
question_answer100) What is the repeating unit in the condensation polymer obtained by combining \[H{{O}_{2}}CC{{H}_{2}}C{{H}_{2}}COOH\] (succinic acid) and \[{{H}_{2}}NC{{H}_{2}}C{{H}_{2}}N{{H}_{2}}\] (ethylenediamine).
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