MEDIUM
8th CBSE
IMPORTANT
Earn 100

Why plastic is lighter than metal?

Important Questions on Synthetic Fibres and Plastics

MEDIUM
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Check Point>Q 1

Do the biodegradable materials cause environmental pollution? Name two biodegradable products.


EASY
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Check Point>Q 2

Is cotton cloth biodegradable or non-biodegradable?

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

What do you understand by 4R principle? Why should we remember this principle?


EASY
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Practice>Q 1
Pick the synthetic fibre out of the following .
EASY
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Practice>Q 2
Which of the following is a source of rayon ?
EASY
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Practice>Q 3
Polycot is obtained by mixing
EASY
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Practice>Q 4
Which is a thermosetting plastic ?
EASY
8th CBSE
IMPORTANT
All in One - SCIENCE CBSE Class 8>Chapter 3 - Synthetic Fibres and Plastics>Chapter Practice>Q 5
The material similar to silk in appearance is