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- 1. Multiple Choice
The first man-made fibre is
nylon
polyester
rayon
cotton
acrylic
- 2. Multiple Choice
The synthetic fibre which resembles silk in texture is
Nylon
Rayon
Acrylic
Polyester
- 3. Multiple Choice
Which fibre is generally called fake fur
Nylon
Polyester
Acrylic
Rayon
- 4. Multiple Choice
Fabric is made up of
Steel
Iron
Fibre
None of these
- 5. Multiple Choice
The smallest unit in making synthetic fibres is
Cell
Molecule
Polymer
None of these
- 6. Multiple Choice
The raw material for making nylon is
Cellulose
Wood pulp
Coal air water
None of these
- 7. Multiple Choice
PET is a type of
Nylon
Rayon
Acrylic
Polyster
- 8. Multiple Choice
Why plastic is used in aircraft and spaceship.
Plastics are lighter compared to metals.
Plastics are cheaper.
Plastics are easy to handle.
Plastic can be recycled.
- 9. Multiple Choice
What is PET?
Polyester
Polyester and Terylene
Poly Ethene Tetraphthalate
Poly Ethene Terylene
- 10. Multiple Choice
Terylene is a popular form of
nylon
Plastic
Rayon
Polyester
- 11. Multiple Choice
Choose the odd one out.
Nylon
Rayon
Silk
Acrylic
- 12. Multiple Choice
Cotton is a natural polymer. Whats is its chemical name?
Cellulose
Natural rubber
Silk
Wool
- 13. Multiple Choice
Tick the wrong statement about cottona plant fiberit is a form of polymer called celluloseit is wrinkle freeit absorbs sweat - 14. Multiple ChoiceNylon is not used for makingropes for climbingblanketsparachutesseat belts in cars
- 15. Multiple ChoiceBakelite is an example ofthermosetting plasticthermoplasticsynthetic fibernone of the above
- 16. Multiple ChoiceElectrical switches are made up ofmelaminebakelitePVCpolythene
- 17. Multiple Choice
See the figure given below and select the correct statements regarding polymers.
1. Figure (X) shows structure of a monomer while figure (Y) shows structure of a polymer.
2. Small boxes in the structure represent monomers that are joined to give a polymer.
3. Figure (X) shows structure of a linear polymer while (Y) shows structure of a cross-linked polymer.
1 and 2 only
1 and 3 only
2 and 3 only
All are correct.
- 18. Multiple Choice
Read the given statements and mark the appropriate answer.
Statement 1: Fabric made from this polyester does not get wrinkled easily.
Statement 2: Polyester is a natural fibre.
Both statements 1 and 2 are true and
statement 2 is the correct explanation
of statement 1.
Both statements 1 and 2 are true
but statement 2 is not the correct
explanation of statement 1.
Both statements 1 and 2 are false.
Statement 1 is true and statement 2
is false.
- 19. Multiple Choice
Atul was climbing mountain and he wondered about the strength of rope in his hand which was stronger than a steel wire. This rope would have been made up of:
Polyester
Nylon
Rayon
Cotton
- 20. Multiple Choice
Which of the following is not a blended fibre?
Terrycot
Terrylene
Polycotton
Terywool
- 21. Multiple Choice
The first synthetic fibre formed from a natural material wood pulp is
acrylic
rayon
nylon
polyester
- 22. Multiple Choice
Necklace : bead :: polymer : ________.
Monomer
Dimer
Tetramer
Trimer
- 23. Multiple Choice
Main source of raw material for producing synthetic fibre is :
CNG
LPG
Refined oil.
Petroleum
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