HARD
Earn 100

Conduct a flame test to identify thermoplastics and thermosetting plastics.

Important Questions on Fibres and Plastics

MEDIUM
What are antacids? Give an example.
MEDIUM
Which polymer is used in the preparation of non-sticking cooking vessels?
MEDIUM
Which resin is prepared from urea and formaldehyde?
MEDIUM

Polythene bags are non-biodegradable. They collect in our surroundings and pollute the soil and water. Old cotton fabric and even old denim cloth can be used to make bags to carry vegetables, fruits, milk sachets and other household items. This would reduce the use of polythene bags.

Should vegetable vendors and shopkeepers sell goods in polythene bags?

EASY
Plastic, metal, and ceramic material are biodegradable materials.
EASY
Which of the following is a use of Bakelite?
MEDIUM
​​​​What should we not do to save natural resources?
MEDIUM
'Avoid plastics as far as possible'. Comment on this advice.
EASY
What are thermosetting plastics?
EASY
A material which is not easily decomposed by natural processes is termed as?
EASY

Polythene is an example of?

EASY
What are biodegradable and non-biodegradable wastes?
EASY

Plastics find exclusive use in:

MEDIUM

Polythene bags are non-biodegradable. They collect in our surroundings and pollute the soil and water. Old cotton fabric and even old denim cloth can be used to make bags to carry vegetables, fruits, milk sachets and other household items. This would reduce the use of polythene bags.

Do you think polythene bags make your surroundings unclean?

EASY
Which of the following is an example of thermosetting plastic?
EASY

Which is a type of plastic used for nonstick coating on cookwares?

EASY
Cellulose is made up of ?
EASY
_____ is a polymer called cellulose.
EASY
Which of the following is an example of thermoplastics?
EASY
Choose the odd one out and give reasons for your answer.