EASY
8th CBSE
IMPORTANT
Earn 100

Cotton is a natural polymer. What is its chemical name?

Important Questions on Synthetic Fibres and Plastics

EASY
8th CBSE
IMPORTANT
NCERT Exemplar Science - Class 8>Chapter 3 - Synthetic Fibres and Plastics>VERY SHORT ANSWER QUESTIONS>Q 12
A synthetic fibre which looks like silk is obtained by chemical treatment of wood pulp. It is, therefore, known as artificial silk. What is its common name?
MEDIUM
8th CBSE
IMPORTANT
NCERT Exemplar Science - Class 8>Chapter 3 - Synthetic Fibres and Plastics>VERY SHORT ANSWER QUESTIONS>Q 13
Terrycot is made by mixing two types of fibres. Write the names of the fibres.
EASY
8th CBSE
IMPORTANT
NCERT Exemplar Science - Class 8>Chapter 3 - Synthetic Fibres and Plastics>VERY SHORT ANSWER QUESTIONS>Q 14
Plastic articles are available in all possible shapes and sizes. Can you tell why?
EASY
8th CBSE
IMPORTANT
NCERT Exemplar Science - Class 8>Chapter 3 - Synthetic Fibres and Plastics>VERY SHORT ANSWER QUESTIONS>Q 15
Plastic is used for making a large variety of articles of daily use and these articles are very attractive. But it is advised to avoid the use of plastic as far as possible. Why?
EASY
8th CBSE
IMPORTANT
NCERT Exemplar Science - Class 8>Chapter 3 - Synthetic Fibres and Plastics>VERY SHORT ANSWER QUESTIONS>Q 16
Why is it not advisable to burn plastic and synthetic fabrics?
EASY
8th CBSE
IMPORTANT
NCERT Exemplar Science - Class 8>Chapter 3 - Synthetic Fibres and Plastics>VERY SHORT ANSWER QUESTIONS>Q 17

Select the articles from the following list which are biodegradable.

(a) paper (c) wood
(b) woollen clothes (d) aluminium can
(e) plastic bag (f) peels of vegetables
EASY
8th CBSE
IMPORTANT
NCERT Exemplar Science - Class 8>Chapter 3 - Synthetic Fibres and Plastics>VERY SHORT ANSWER QUESTIONS>Q 18
A bucket made of plastic does not rust like a bucket made of iron. Why?
MEDIUM
8th CBSE
IMPORTANT
NCERT Exemplar Science - Class 8>Chapter 3 - Synthetic Fibres and Plastics>SHORT ANSWER QUESTIONS>Q 19
Rohit took with him some nylon ropes, when he was going for rock climbing. Can you tell why he selected nylon ropes instead of ropes made of cotton or jute?