Question

Choose the correct statement.
(i) Most of the plastics are biodegradable.
(ii) Synthetic fibres do not melt on heating.
Polywool is a mixture of polyester and
wool.
(iv) Synthetic fibres are not durable.
Word 'polymer' comes from two Greek
words; poly meaning many and mer meaning
part/ unit. So, a polymer is made of many
repeating units.
(vi) Rayon is mixed with cotton to make bed
sheets or mixed with wool to make carpets.
(vii) Nylon is lustrous and easy to wash.
(viii) Terylene is a popular acrylic.
(ix) Polyethylene terephthalate is a very
familiar form of polyester.
We should wear synthetic clothes while
working in the kitchen or in a laboratory.​

Answer 1

Answer:

3 and 4 are correct statement