Q4 of 15 Page 41

Give examples which indicate that nylon fibres are very strong.

Nylon fibres are very strong as indicated by these examples:

1) for making ropes used for climbing rocks and for making parachutes.


2) They are used to make tents.


3) They are also use in car seat belts and sleeping bags, etc.


More from this chapter

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2

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.


(c) its fibres can also be woven like those of natural fibres.

 3

Fill in the blanks with appropriate words.

(a) Synthetic fibres are also called _______or _______ fibres.


(b) Synthetic fibres are synthesised from raw materials called_______.


(c) Like synthetic fibres, plastic is also a________.

 5

Explain why plastic containers are favored for storing food.

 6

Explain the difference between thermoplastic and thermosetting plastics.