MEDIUM
8th CBSE
IMPORTANT
Earn 100

Why has artificial wool become more popular than natural wool? 

Important Questions on Synthetic Fibres and Plastic

MEDIUM
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 4 - Synthetic Fibres and Plastic>EXERCISE>Q 6

What is the chemical nature of polyester? What is polycot? 

MEDIUM
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 4 - Synthetic Fibres and Plastic>EXERCISE>Q 7
Why is polyester suitable for making dress materials? 
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 4 - Synthetic Fibres and Plastic>EXERCISE>Q 8
Name some objects made of plastic. 
MEDIUM
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 4 - Synthetic Fibres and Plastic>EXERCISE>Q 9

Differentiate between: 

Natural and synthetic fibres. 

MEDIUM
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 4 - Synthetic Fibres and Plastic>EXERCISE>Q 9

Differentiate between: 

Rayon and silk. 

HARD
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 4 - Synthetic Fibres and Plastic>EXERCISE>Q 9

Differentiate between: 

Thermoplastic and thermosetting plastic. 

MEDIUM
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 4 - Synthetic Fibres and Plastic>EXERCISE>Q 10

Bakelite is best suited for making electrical switches. Comment. 

MEDIUM
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 4 - Synthetic Fibres and Plastic>EXERCISE>Q 11
Melamine is preferred to make kitchenware. Give reason.