rayon are made from wood pulp which is a natural substance. Then why they are called synthetic fibres?

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Solution

Hi,
Towards the end of the 19^thcentury, scientists were successful in obtaining a fibre having properties similar to that of silk. Such a fibre was obtained by chemical treatment of wood pulp. This fibre was called rayon or artificial silk. Although rayon is obtained from a natural source, wood pulp, yet it is a man-made fibre.

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Similar questions

We have fibres, namely synthetic and natural. When talking about the synthetic fibres, we see that they are very different in properties from each other. For instance, Rayon is a synthetic fibre but it is very different from other synthetic fibres. How?

Q. Fill in the blanks with the correct words.
1. Fibres that are made by human beings are called .................... (natural/synthetic) fibres.
2. .................... (Polyester/Rayon) absorbs sweat.
3. .................... (Nylon/Rayon) are used for making toothbrush bristles.
4. .................... (Spandex/Nylon) has excellent elasticity.
5. Most synthetic fibres .................... (can/cannot) handle heavy loads without breaking.

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.
(e) Terylene, a synthetic fibre, can be used instead of wool.
(f) Rayon, which is obtained from cellulose, is a natural fibre.

Q. Mark the correct answer.

Rayon is different from synthetic fibres because:

(a) It has a silk-like appearance.

(b) It is obtained from wood pulp.

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