Question : Glycol is used to manufacture which of the following?
Option 1: Nylon
Option 2: Artificial silk
Option 3: Terylene
Option 4: Rubber
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Correct Answer: Terylene
Solution : The correct answer is Terylene.
Polyester fibres, such as terylene, are produced by a chemical reaction called condensation polymerization. This process combines ethylene Glycol and Terephthalic acid (Dimethyl terephthalate) to create a polymer chain with repeating units. Ethylene glycol plays an important role in the creation of polyester.
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Question : Terylene is a condensation polymer of ethylene glycol in which acid?
Option 1: Benzoic acid
Option 2: Salicylic acid
Option 3: Phthalic acid
Option 4: Terephthalic acid
Question : Silk is obtained from:
Option 1: Mulberry tree
Option 2: Saliva of the silk worm
Option 3: Larvae of silk worm
Option 4: Cocoon of silk worm
Question : Which of the following is a natural polymer?
Option 1: Bakelite
Option 2: Nylon
Option 3: Polythene
Option 4: Starch
Question : Which of the following fibers catches fire least?
Option 2: Cotton
Option 3: Rayon
Option 4: Terricot
Question : The material used in the manufacture of lead pencil is
Option 1: Graphite
Option 2: Lead
Option 3: Carbon
Option 4: MIca
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