Q22 of 83 Page 55

What is PET? State the uses of PET.

PET is a form of polyester. Polyester is the synthetic fibre which is made up of repeating units of a chemical called an ester. Esters are the chemicals which give fruits their smell. PET is used for making bottles, utensils, films and wires.


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What is polyester? Name a popular polyester.

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Arrange the following fibres in the order of increasing strength (keeping the fibre of least strength first): Nylon, Cotton, Wool, Polyester, Silk

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What is acrylic? State one important property of acrylic.

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Write the uses of acrylic fibres.