CBSE- Synthetic Fibres and Plastics-HOTS Questions

1.  Is nylon fibre so strong, that we can use it to make parachutes?

2.  Give some uses of PET

3.  Why is melamine used for making kitchenware?

4.  Give three advantages of polythene over natural materials.

5.  Explain why plastic containers are favored for storing food?

6.  Explain why Electric plugs/switches/plug boards are made of thermosetting plastics?

7.  Give examples to show that plastics are noncorrosive in nature.

8.  What are the advantages of using fabrics made of polyester?

9.  What are the disadvantages of wearing synthetic fabrics?

10.  Give three advantages of rayon.