Multiple Choice Questions

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Monomer of polymer 

  • 2-methylpropene

  • styrene

  • propene

  • ethene


A.

2-methylpropene

2-methylpropene or isobutylene undergoes cationic polymerisation easily in presence of BF3 or H2SO4 since it has two electron donating methyl groups that will stabilize the intermediate carbocation,


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Bisphenol and epichlorohydrin condensed in presence of NaOH forming

  • Resins

  • Rubber

  • Foam

  • Polyester


Bakelite is the condensation polymer of

  • C6H5OH and caprolactum

  • HCHO and phthalic acid

  • C6H5OH and HCHO

  • HCHO and ethylene glycol


Natural rubber is a polymer of monomer isoprene. During polymerisaton

  • 1, 4 addition takes place

  • 1, 2 addition takes place

  • 1,3 addition takes place

  • both double bonds are converted into single bond


Which one of the following monomers gives the polymer neoprene on polymerisation?

  • CH2=CH-Cl

  • CCl2=CCl2

  • CH2=CCl-CH=CH2

  • CF2=CF2


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Select the correct statement

  • Orlon is an addition polymer

  • Dacron is an addition polymer

  • Orlon is a condensation polymer

  • The monomers of orlon is styrene


Bakelite is polymer of phenol and

  • HCOOH

  • HCOOCH3

  • HCHO

  • CH3COOH


Which of the following polymers can be used for lubrication and as an insulator?

  • SBR

  • PVC

  • PTFE

  • PAN


Among the following which one is condensation polymer?

  • Orlon

  • Melamine

  • Teflon

  • PMMA


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The hard plastic covers of telephones are made from polymers of

  • acrylonitrile

  • styrene

  • fluoromethane

  • phenol and formaldehyde


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