Related Questions

Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
A Organic peroxides
B Sulphuric acid
C Hydroflouric acid
D None of these
In condensation polymerisation as compared to addition polymerisation
A The monomers are unsaturated compounds
B No co-product is lost
C The monomers contain two functional groups
D Generally only one monomer is involved
Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is
A Nylon-66
B Teflon
C Polyester
D Bakelite
In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is
A Terylene
B Polybutadiene
C PVC
D Polypropylene
Addition polymerisation is not involved in the manufacture of
A Low density polythene
B Poly vinyl chloride
C Polystyrene
D Polyhexamethylene adipamide
Which of the following is produced by condensation polymerisation?
A Bakelite
B Polythene
C Poly vinyl chloride
D Polystyrene
Polymethyl methacrylate (PMMA) which is also known as perspex and is produced by bulk polymerisation of methyl methacrylate is not a __________ polymer.
A Thermoplastic
B Thermosetting
C Linear
D Glass like transparent
Phenol formaldehyde is produced by condensation polymerisation. It is also known as
A Teflon
B Bakelite
C Polyester
D Nylon-66
Nitrile rubber is produced by the polymerisation of
A Acrylonitrile & butadiene
B Acrylonitrile & styrene
C Isobutylene & isoprene
D None of these
__________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine.
A Epoxy
B Amino
C Alkyd
D Phenolic

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