MEDIUM
8th CBSE
IMPORTANT
Earn 100

What are the uses of nylon and rayon?

Important Questions on Synthetic Fibres and Plastics

MEDIUM
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Test>Q 14

Polyesters are preferred for making dress materials. Why?

MEDIUM
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Test>Q 15

Write the process of preparing rayon.

MEDIUM
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Test>Q 16

What do you mean by polymerisation?

HARD
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Test>Q 17

List some properties and uses of acrylic and polyester.

MEDIUM
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Test>Q 18

Why should we minimise the usage of plastics?


MEDIUM
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Test>Q 19

Why microwave cookwares are made of plastic?

MEDIUM
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Test>Q 20

Why is acrylic considered as a cheap substitute of wool?