Which one of the following is prepared using only one type of material ?
A
Polycot
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B
Polywool
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C
Terrycot
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D
Polyester
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Solution
The correct option is D Polyester
Polyester is a polymer that is made using only one type of material. It is a synthetic derived from coal, air, water and petroleum. The fibres are formed from the reaction between acid and alcohol.
In this 2 or more molecules combine to form a molecule whose structure repeats throughout the length.