Go through this content and answer these questions:
1. Fill in the blanks:
a). Fabrics are made from _______ obtained from natural or artificial sources.
b). _______ fibres like cotton, wool, silk, etc are obtained from plants or animals.
c). A _______ is made of many repeating units.
d). Cellulose is a polymer of ________ .
e). _______ is the first fully synthetic fibre.
f). The fibre obtained from the chemical treatment of wood pulp is ______ .
g). _______ called artificial silk.
h). PET stands for________.
i). _________ is a popular polyester.
j). Synthetic wool is made up of _________.
k). Polycot a mixture of ______ and cotton.
l). All the synthetic fibres are prepared by a number of processes using raw materials of petroleum origin, called _________.
2. Write the use of artificial fibres.
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Answers
Answer:
Ques (1).
a). animal,plant,and mineral sources
b). natural fibres
c). polymer
d). ( it's a polysaccharide)...
e). nylon
f). Rayon
g). Rayon
h).Polythylene terephthapate
I) . terylene ( chemically known as PET)
j). repeating units if chemical called ester
k). polyester and cotton
l). petrochemicals
Ques. (2).
it is used in the manufacture of ropes, nets for fishing and seat belts. They are more durable than most natural fibres and will readily pick up different dyes. many synthetic fibres offer consumer- friendly functions such as streching, waterproofing and stain resistant.they are cheaper than natural fibre. They are stronger than natural. They are more durable than natural fibres.
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a). animal, plant,and mineral sources b). natural fibres
c). polymer
d). (it's a polysaccharide)...
e). nylon
f). Rayon
g). Rayon
h).Polythylene terephthapate
I). terylene (chemically known as PET)
j). repeating units if chemical called ester
k). polyester and cotton
I). petrochemicals