SYNTHETIC FIBRES AND PLASTICS

This gets deformed by heating. Name it.

What do you understand by thermosetting plastics?

This arrangement is specific in

• bakelite

• polythene

• PVC

• Water bottle plastic

This is a product of __________________________ and it resists ________________________

• PVC ,fire

• PVC, heat

• Melamine, fire

• Polythene, Heat

Threads for stitching wounds are made of

• Rubber

• Steel

• Plastic

• Copper

Aluminium or any other metal cans will take 100 to __________________ years to degenerate.

Are you in favour of using plastics? If yes/no give reasons.

This figure is showing the coating a car by using

• Teflon

• Bakelite

• Melamine

• ceramic

As a responsible citizen you should follow 5 R principle.

All the products shown in the figure are biodegrable

• No

• Yes

• Few are biodegradable

• None of the above