Science - Synthetic Fibres and Plastics: Grade 8
Authored by Krrithik 007
Science, Chemistry
8th Grade
Used 428+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What are synthetic fibres?
Naturally obtained fibres from Plants and Animals.
Man-made fibres that are obtained from petrochemicals and synthesized in a laboratory by humans.
They are obtained from both natural elements and synthesized in laboratory.
All of the above
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which was the first true synthetic fibre?
Polyester
Silk
Nylon
Spandex
3.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Rayon is also known as ___________________? ( Select 2 options)
Natural fibre
Semi synthetic fibre
Thermoset Plastic
Artificial Silk
4.
FILL IN THE BLANKS QUESTION
20 sec • 1 pt
Which fibre can be a substitute for wool?
(a)
5.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Advantages of Synthetic fibres: (Select 2 option)
Stronger and more durable than natural fibres
They are cheaper than natural fibres
They are comfortable to wear
They are expensive than natural fibres
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
What is the type of arrangement of polymers in Thermosetting Plastic?
Linear arrangement of polymers
Random arrangement of polymers
Cross-linked arrangement of polymers
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which of the following are not the properties of Plastics?
Thermal conductivity
Electrical conductivity
Flammability
Sonority
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