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Question

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.

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Solution

(a) False
The correct statement should be:
​Polymers are large molecules made by stringing together several monomers (small molecules).

(b) False
The correct statement should be:
Blended fabrics contain both synthetic and natural fibres. They are produced by the combination of synthetic fibres and natural fibres.

(c) False
The correct statement should be:
Dusters made of cotton (natural fibre) are good for use in kitchen. They absorb water and do not catch fire easily. Even if they catch fire, they do not stick to the body of the person who is holding it.

(d) True

(e) False
The correct statement should be:
Acrylic is a synthetic fibre that can be used instead of wool.

(f) False
The correct statement should be:
Rayon, which is obtained from cellulose, is a synthetic fibre. Rayon is prepared chemically from wood pulp (cellulose).

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