Class XII

Which of the following statements is not true about low density polythene?
  1. Good conductor of electricity
  2. Hard
  3. Highly branched structure
  4. Tough
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
Which polymers occur naturally in nature
  1. Starch and nylon
  2. Proteins and PVC
  3. Proteins and buno
  4. Starch and cellulose
Which of the following is used as for manufacturing conveyor belts, gaskets and hoses.
  1. Buna – N
  2. None of these
  3. Buna – S
  4. Neoprene
Insulin is a polymer of
  1. Fructose
  2. Galactose
  3. Arabinose
  4. Glucose
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