Chapter 3- Synthetic fibres and Plastic

The clothes that we wear are made from?

• Plastic

• Fibres

• Metal

• All of these

• None of these

Many monomers join together and form a

• Polymer

• Fibre

• String

• Fabrics

Rayon is mixed with wool to make

• Carpets

• Blankets

• Bedsheets

Which of the following is made from Nylon?

• Socks

• ropes

• Tents

• All of the above

The monomer of Polyster

• Ester

• Chloride

• Polyvinilechloride

• None of the above

Sweaters, Shawls etc are made from

• Nylon

• Rayon

• Acrylic

• Plastic

There are some plastics which they Moulded once, cannot be further softened by heating. They are called thermosetting plastic. True or False

• True

• False

Plastic is not light, strong and durable.

True or False

• True

• False

Plastics are poor conductors of ?( as per the text book)

• Heat

• Electricity

• Water

• Both A and B

the 5R Priciple

• Reduce, Reuse, Refuse, Recover, Refuse

• Resourceful. Resourcefully. Resourcefulness. Respect. Respectable.

• Respectably. Respected. Respectful.