Class XII

Painting material among the following is
  1. Polyvinyl chloride
  2. Polystyrene
  3. Polypropene
  4. Glyptal
Addition polymers formed by the polymerisation of a single monomeric species
  1. homopolymers
  2. Elastomers
  3. copolymers
  4. condensation polymers
Polymerisation can be obtained by
  1. None of these
  2. Condensation
  3. Chain growth
  4. Both Chain growth and Condensation
In which of the following polymers ethylene glycol is one of the monomer units?
  1. formation of glyptal
  2. formation of nylon 6,6
  3. formation of dacron
  4. formation of nylon 6
PHBV is developed because :
  1. -------------------------------------------------------------------------------- to reduce accumulation of the synthetic solid polymer waste
  2. None of these
  3. as an alternative to natural rubber
  4. it is more easily prepared by copolymerisation
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