Question

1. Choose the correct options.
a) Which of the following is not a man-made fibre?
iv. wool
iii. acrylic
i. rayon
ii. nylon


b) It was the first non-cellulosic polymer or synthetic fibre ever made.
iv. rayon
iii. acrylic
i. polyester ii. nylon


c) It is a major disadvantage of synthetic fibres.
ii. These fibres are resistant to chemicals.
i. These fibres absorb less water.
iv. These fibres are easy to wash.
iii. These fibres melt on heating.


d) This synthetic fibre is a polymer of ester.
iv. polyester
i. nylon
iji. cellulose
ii. rayon


e) Which of the following is not a property of polyester?
i. It is stretchable, durable, and does not shrink.
ii. It resists wrinkles.
iii. It is easy to wash and dries faster.
iv. It is shiny and lustrous like silk.


f) Which fibre is used as an alternative to wool?
i. silk
ii. acrylic iii. polyester


g) Each repeating unit in a polymer is called
i. monomer. ij. dimer. iii. trimer. iv. tetramer.


h) What is polycot?
i. a mixture of polyester and cotton ii. a mixture of polyester and wool
iii. a mixture of cotton and wool
iv. a mixture of silk and cotton
iv. rayon​

Answer 1

Answer:

a) wool

b) acrylic I think

c)iii

d)

e) iii

f) silk

g) tetrahedron

h) i

Explanation:

it is 2000% correct

Answer 2

a) wool

b) nylon

c)these fibres absord less water

d) polyester

e)it is shiny and loutrous like silk

f) acrylic

g)monomer

h)a mixture of polyester and cotton

I beg you pls make me as brainlist