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Synthetic Fibres And Plastics

Question
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Explain why, synthetic fibres have become so popular.

Solution

Synthetic fibres have so popular because of their much superior properties as compared to natural fibres like cotton, silk and wool. For example :

(i) Synthetic fibres absorb very little water. So, the clothes made of synthetic fibres dry quickly after washing.

(ii) Synthetic fibres are very strong. So the clothes made of synthetic fibres last for a long time. It is also used for making parachutes and ropes for rock climbing.

Some More Questions From Synthetic Fibres and Plastics Chapter

Explain why plastic containers are favoured for storing food.

Explain the difference between the thermoplastic and thermosetting plastics.

Explain why the following are made of thermosetting plastics.

(a) Saucepan handles

(b) Electric plugs/switches/plug boards

Categorise the materials of the following products into ‘can be recycled’
and ‘cannot be recycled’:
Telephone instruments, plastic toys, cooker handles, carry bags, ball point
pens, plastic bowls, plastic covering on electrical wires, plastic chairs,
electrical switches.

Rana wants to buy shirts for summer. Should he buy cotton shirts or
shirts made from synthetic material? Advise Rana, giving your reason.

Give examples to show that plastics are noncorrosive in nature.

Should the handle and bristles of a tooth brush be made of the same material? Explain your answer.

‘Avoid plastics as far as possible’. Comment on this advice.

Match the following  of column I correctly with the phrases given in column II:

‘Manufacturing synthetic fibres is actually helping conservation of forests’.
Comment.

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