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- 1. 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.
- 2. 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.
- 3. 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
- 4. Multiple Choice
Nylon is obtained by
Treatment of wood pulp.
Mixing coal, air and water.
Solidifying water.
Mixing acids and bases.
- 5. Multiple Choice
Which of the following is not a blended fibre?
Terrycot
Terrylene
Polycotton
Terywool
- 6. Multiple Choice
The first synthetic fibre formed from a natural material wood pulp is
acrylic
rayon
nylon
polyester
- 7. Multiple Choice
A fibre which is as soft as wool is
rayon
nylon
polyester
acrylic
- 8. Multiple Choice
Necklace : bead :: polymer : ________.
Monomer
Dimer
Tetramer
Trimer
- 9. Multiple Choice
Main source of raw material for producing synthetic fibre is :
CNG
LPG
Refined oil.
Petroleum
- 10. Multiple Choice
Which one of the following can be semi-synthetic fibre?
Nylong
Rayon
Acrylic
PET
- 11. Multiple Choice
The long-chained polymers made by linking several ester units is called
polythene
polyester
polypropene
polystyrene
- 12. Multiple Choice
Which of the following will soak less water?
Nylon
Silk
Wool
Cotton
- 13. Multiple Choice
We should not wear synthetic clothes while cooking in the kitchen or in a laboratory.
True
False
- 14. Fill in the Blank
A polymer is a chain of many small units joined together which are called ________.
- 15. Multiple Choice
From which part of sheep is wool made from?
Skin
Toes
Fleece
All the above
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