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A polymeric substance used to make parachute is: (A) Rayon (B) Viscose (C) Cotton (D) Terylene

A polymeric substance used to make parachute is: (A) Rayon (B) Viscose (C) Cotton (D) Terylene Correct Answer D

Concept:

Polymers:

  • Polymers are high molecular mass compounds obtained by joining repeating units in a regular fashion.
  • The simple reactive molecules from which the repeating units of polymers are derived are called monomers. For example,

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  • The simple process by which monomers are transferred into polymers is known as polymerisation.

  • Classification of Polymer (Based on the source of availability):

  • Natural polymers:
    • Polymers obtained mostly plants and animals (nature).  
    • Examples: Cellulose, starch, etc.
  • Synthetic polymers:
    • Polymers prepared artificial or man-made in the laboratory.
    • Examples: Synthetic rubber (Buna – S), Nylon 6,6, Teflon, etc.
  • Semi-synthetic polymers:
    • Through chemical modification, some polymers occurring naturally.
    • Examples: cellulose nitrate, Rayon (cellulose acetate), etc. 
  • The polymers can be classified into Addition and Condensation polymers according to the process of polymerization.

Explanation:

Terylene-

  • It is a synthetic condensation polymer.
  • The monomers are ethylene glycol and terephthalic acid.
  • It has an esoteric linkage and is formed by successive condensation of ethylene glycol molecules and terephthalic acid.
  • It is used in polyester fibres.
  • A mixture of zinc acetate and antimony trioxide is used as a catalyst.

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So, A polymeric substance used to make parachutes is Terylene, which is a strong and artificial fibre among all.

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The Proper sequence should be:
Viscose rayon is