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Science, Chemistry
8th
grade
Science - Synthetic Fibres and Plastics: Grade 8
20 questions
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- 1. Multiple Choice
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
Which was the first true synthetic fibre?
Polyester
Silk
Nylon
Spandex
- 3. Multiple Choice
Rayon is also known as ___________________? ( Select 2 options)
Natural fibre
Semi synthetic fibre
Thermoset Plastic
Artificial Silk
- 4. Fill in the Blank
Which fibre can be a substitute for wool?
- 5. Multiple Choice
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
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
Which of the following are not the properties of Plastics?
Thermal conductivity
Electrical conductivity
Flammability
Sonority
- 8. Fill in the Blank
What is the abbreviation/Shortform of Polyvinyl chloride? (All the letters in capital)
- 9. Multiple Choice
Examples of Thermosetting Plastic?
Teflon
Terylene
Melamine
Bakelite
- 10. Multiple Choice
Which is the Strongest Synthetic fibre?
Cotton
Rayon
Spandex
Nylon
- 11. Multiple Choice
Name a synthetic fibre which is also known as polyamide
Nylon
Cellulose
Plastic
Linen
- 12. Multiple Choice
In which country was rayon first time synthesized?
Portugal
England
Sweden
Chile
- 13. Multiple Choice
Who produced the first ever synthetic fibre?
Micheal Reynolds
Sebastin Stan
Joseph Swan
Frank Washington
- 14. Multiple Choice
What is the Natural polymer present in Rayon?
Cotton
Chlorophyll
Terylene
Cellulose
- 15. Multiple Choice
What is the other name of Acrylic?
Morphic
Orlon
Lycra
Elastane
- 16. Fill in the Blank
What is the other name of Spandex? (Starts with L)
- 17. Multiple Choice
Who invented celluloid, the first commercially successful synthetic polymer in 1869?
Alexander Parkes
Joseph Swan
John Hyatt
Wallace Carothers
- 18. Multiple Choice
Where did Wallace Carothers and his team first produced Nylon?
Sydney
DuPont
NYC
Fleur port
- 19. Multiple Choice
Which synthetic fibre has high tensile strength?
Spandex
Celluloid
Nylon
Jute
- 20. Multiple Choice
Which country has banned the usage of plastic bags?
Argentina
Iceland
China
Norway
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