Class XII

Cellulose, starch, resins and rubber belong to one of the following category of polymers
  1. Synthetic polymers
  2. None of these
  3. Natural polymers
  4. Semi – synthetic polymers
Painting material among the following is
  1. Polyvinyl chloride
  2. Polystyrene
  3. Polypropene
  4. Glyptal
Which of the following monomers form biodegradable polymers?
  1. 3 – hydroxybutanoic acid + 3 – hydroxypentanoic acid
  2. Glycine + amino caproic acid
  3. Both Glycine + amino caproic acid and Ethylene glycol + phthalic acid
  4. Ethylene glycol + phthalic acid
Copolymerisation of 1, 3 – butadiene and acrylonitrile needs
  1. antimony trioxide catalyst
  2. peroxide catalyst
  3. persulphate catalyst
  4. zinc acetate catalyst
Wrapping material among the following is
  1. Polyvinyl chloride
  2. Glyptal
  3. Polystyrene
  4. Polypropene
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