EASY
8th CBSE
IMPORTANT
Earn 100

There is a difference between the raw materials used in rayon and other synthetic fibres like nylon or polyester. What is the difference?

Important Questions on Synthetic Fibres and Plastics

EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 3 - Synthetic Fibres and Plastics>ORAL QUESTIONS>Q 2

The prefix 'poly' means 'many' for example, 'polygon' means a figure with many sides. What is the significance of the prefix 'poly' in 'polyester'? 

MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 3 - Synthetic Fibres and Plastics>ORAL QUESTIONS>Q 3

Synthetic fibres are strong, elastic, light, wrinkle-resistant, and easy to wash and dry. Even with so many advantages, we do not wear clothes made of pure synthetic fibres, but a mixture of synthetic and natural fibres. Why is this necessary? 

EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 3 - Synthetic Fibres and Plastics>ORAL QUESTIONS>Q 1
The molecular structures of synthetic fibres and plastics have one common feature. What is it? 
MEDIUM
8th CBSE
IMPORTANT
Living Science 8>Chapter 3 - Synthetic Fibres and Plastics>ORAL QUESTIONS>Q 2

Bakelite and polythene are both plastics. However, there is one major difference in their nature. What is the difference? 

EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 3 - Synthetic Fibres and Plastics>ORAL QUESTIONS>Q 3
Can bacteria break down plastics? 
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 3 - Synthetic Fibres and Plastics>EXERCISES>Q A
Which of these is a natural fibre?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 3 - Synthetic Fibres and Plastics>EXERCISES>Q A

Which of these is a fibre derived from chemicals? 

EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 3 - Synthetic Fibres and Plastics>EXERCISES>Q A

Which of these fibres is made from a raw material obtained from plants?