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Kerala PSC - Important and Expected General Science Questions - 39

Kerala PSC - Important and Expected General Science Questions - 39

  1. What are the examples for natural polymers?

  2. What are the examples for synthetic polymers?

  3. The polymers soften on heating and become hard on cooling & can be remoulded, recast and reshaped are known as ___

  4. The polymers that can only be mouled into desired shape on heating once & cannot be reused are known as ___

  5. Which is the semi-synthetic polymer obtained by chemical treatment of wood pulp (cellulose)?

  6. What is known as 'Artificial silk'?

  7. What is the type of polymerisation in which simple monomers are united together without loss of small molecules?

  8. Name the important addition polymers?

  9. Which type of polymer is obtained by polymerisation of ethylene?

  10. Which polymer is used in the insulation wires and manufacturing of squeeze bottles, boys, flexible pipes and buckets?

  11. Which type of polymer is obtained by the polymerization of tetrafluoro ethylene?

  12. Which type of polymer is used as a substitute for wool in making commercial fibres?

  13. Which type of polymer is used in indoor/outdoor carpetting and upholstery?

  14. Which type of polymers are stronger than steel, stiffer than titanium and lighter than aluminium?

  15. Which type of polymer is used in defence sector as nose tips and head shields of missiles?

  16. What are the examples of condensation polymers?

  17. In which type of polymerisation is simple monomers are joined together with loss of small molecules like water & ammonia?

  18. What is obtained by the condensation polymerisation of phenol and formaldehyde?

  19. The natural rubber is a linear polymer of?

  20. The natural rubber is obtained from the ___ of the rubber tree?

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Kerala PSC - Important and Expected General Science Questions - 39 Kerala PSC - Important and Expected General Science Questions - 39 Reviewed by Santhosh Nair on 10:31 PM Rating: 5
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