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How can you identify a natural and synth...

How can you identify a natural and synthetic fibre? Justify your answer.

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To identify natural and synthetic fibers, we can follow these steps: ### Step 1: Source of Fiber - **Natural Fibers**: These fibers are obtained directly from nature. They come from plants, animals, or minerals. Examples include cotton (from cotton plants) and silk (from silkworms). - **Synthetic Fibers**: These fibers are man-made and are produced in laboratories or factories. They are created through chemical processes. Examples include nylon and polyester. ### Step 2: Characteristics and Properties - **Natural Fibers**: They tend to be biodegradable, breathable, and comfortable to wear. They usually have a softer feel and may have variations in texture and color. ...
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PEARSON IIT JEE FOUNDATION-SYNTHETIC FIBRES AND PLASTICS -CLASSROOM CORNER (Short Answer Type Questions)
  1. Name any three natural fibres. What are the different sources from whi...

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  2. Explain why is rayon considered a semi-synthetic fibre.

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  3. How can you identify a natural and synthetic fibre? Justify your answe...

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  4. Discuss why polyester is considered a cancer causing fibre? Comment.

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  5. What is the most common synthetic fibres?

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  6. Why does synthetic fibres melt but natural fibres do burn? Discuss you...

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  7. Explain how is nylon made. Comment

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  8. Discuss the different characteristics and uses of nylon?

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  9. Discuss why acrylic is considered non-safe to wear? Comment

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  10. Justify how is polyester used in everyday life? Comment

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  11. Explain what is polyethylene terephthalate used for.

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  12. Is acrylic considered a natural fibre? Justify your answer.

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  13. Give some uses of PET. Discuss in brief.

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  14. Manufacturing synthetic fibres is actually a helping conservation of f...

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  15. Why is acrylic blended with wool? Justify your answer.

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  16. Explain why the following are made of ther mosetting plastics. I. ...

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  17. Answer the below point: What are the two types of plastics?

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  18. Answer the below point: Give any one example of thermosetting plast...

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  19. Answer the below point: Name any one plastic that easily melts when...

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  20. Answer the below point: Name the plastic that is used for making mi...

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