Question

1. ------------ is used as a coating on the surface of non- stick frying pans.

2. -----------synthetic fiber is commonly used to make strong ropes.

3. ---------- are long- chain polymers made by linking of several ester units.

4. ----------plastics are set into a particular shape cannot be remolded.

5.---------- is the most common source for synthetic fibers.

6.Plastic are an example of -----------.

7.Synthetic fibers are synthesized from raw material called ………….

8. Synthetic fibers are also called ………. or ……….. Fibers.

9. Synthetic fibers are synthesized from raw material called ………..

10. .………… is a popular polyester

Q2. True/False

i. Thermoplastics can bent easily.

ii. Polymers are made up of many bigger units.

iii. PET is a very familiar form of polyester.

iv. Polyester fabrics do not get wrinkled easily.

v. Fabric obtained from silk fiber is very cheap.

vi. Fabric made from polyester fiber does not get wrinkled easily.​

Answer 1

Answer:

Que.1

1. Teflon
2. Nylon
3. Polyster
4. Thermosetting plastics
5. Petrolium
6. Non-biodegradable
7. Petrochemicals
8. Man made or artifical
9. Petrochemicals (Same question)
10. Terelyn(PET)

Que.2

1. True
2. False
3. True
4. False
5. True

Explanation:

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