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Polyester

Which among t...

Question

Which among the following statements is FALSE?

A

Nylon is the first fully synthetic fibre.

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B

Rayon is the first formed synthetic fibre.

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C

Polyester is a semi-synthetic fibre.

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D

Dacron is a man-made fabric.

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Solution

The correct option is C Polyester is a semi-synthetic fibre.
Rayon is a semi-synthetic fibre, because the source of rayon is woodpulp.
Nylon is the first fully synthetic fibre in the market produced by du Pont.
Polyester is a purely synthetic fibre.
Dacron is a type of polyester which is entirely a man-made fabric.

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Q. _________ is the first fully synthetic fibre.

Q. Are these statements true or false? Rewrite the false ones correctly.
(a) Polymers are small molecules made by stringing together several monomers.
(b) Blended fabrics contain only synthetic fibres.
(c) Dusters made of nylon or other synthetic materials are good for use in the kitchen.
(d) Polyester fibres are obtained from petroleum products.
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(f) Rayon, which is obtained from cellulose, is a natural fibre.

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