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Categorise the materials of the followin...

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 ,electric switches.

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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

Explain why the following are made of thermosetting plastics. Electric plugs/switches/plug boards

Explain why the following are made of thermosetting plastics. Electric plugs/switches/plug boards

PSEB-SYNTHETIC FIBRES AND PLASTICS-EXERCISE
  1. explain why iron sheets are coated with zinc layer?

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  2. Mark correct for the correct answer. Rayon is different from syntheti...

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  3. Fill in the blanks with appropriate words. Synthetic fibres are also...

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  4. Fill in the blanks with appropriate words. Synthetic fibres are synt...

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  5. Fill in the blanks Like synthetic fibres, plastic is also a………………

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  6. Give examples which indicate that nylon fibres are very strong .

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  7. Explain why plastic containers are favoured for storing food.

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  8. Write down differences between thermosetting polymers and thermoplasti...

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  9. Explain why the following are made of thermosetting plastics. Sauce...

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  10. Explain why the following are made of thermosetting plastics. Elect...

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  11. Categorise the materials of the following products into' can be recycl...

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  12. Rana wants to buy shirts for summer. Should he buy cotton shirts or sh...

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  13. Give examples to show that plastics are non -corrosive in nature.

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  14. Should the handles and bristles of a toothbrush be made of the same ma...

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  15. Avoid plastics as far as possibl',. Comment on this advice.

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  16. Manufacturing synthetic fibres is actually helping the conservation o...

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  17. Describe an activity to show that thermoplastic is a poor conductor of...

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