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Class 8 Science
Synthetic Fibres And Plastics
Quiz 1
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A chain of small chemical units combined to form a large single unit is called ____
0%
Polymer
0%
Poly
0%
Polythene
0%
None of the above
Explanation
Polymer
Polythene and PVC are examples of
0%
Bio degradable substance
0%
Thermosetting plastics
0%
Thermoplastics
0%
Rayon
Explanation
Thermoplastics
Plastics which when moulded once, cannot be softened by heating. Such plastics are called ____
0%
Polythene
0%
Thermoplastics
0%
Polyster
0%
Thermosetting plastics
Explanation
Thermosetting plastics
Polycot is made by mixing two types of fibres namely
0%
Silk + Cotton
0%
Polythene + cotton
0%
Silk + Polyester
0%
Polyester + Cotton
Explanation
Polyester + Cotton
The 4 R Principle is
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Reduce, Reuse, Recycle, Recover
0%
Remember, reduce, Recycle, Rejoice
0%
Repeat, Rejoice, recycle, reduce
0%
None of the above
Explanation
Reduce, Reuse, Recycle, Recover
_____________ is an example of natural polymer
0%
Rayon
0%
Cellulose
0%
Nylon
0%
All of the above
Explanation
Cellulose
Which of the following is Non-biodegradable
0%
Woolen clothes
0%
Plastic bag,
0%
Cotton cloth
0%
Wood
Explanation
Plastic bag,
Bakelite and Melamine are examples of
0%
Thermosetting plastics
0%
Silk
0%
Nylon
0%
Rayon
Explanation
Thermosetting plastics
Fire proof plastic uniform worn by fire fighters has a coating of _____ to make it fire resistant.
0%
Nylon
0%
Rayon
0%
Melamine plastic
0%
Silk
Explanation
Melamine plastic
The coating on modern non- stick cookware and electric iron is of
0%
Terrycot
0%
Rayon
0%
Polyester
0%
Teflon
Explanation
Teflon
What is the other name for artificial silk?
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Nylon
0%
Rayon
0%
Acrylic
0%
Polyester
Explanation
Rayon
Which fibre is used as artificial wool?
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Acrylic
0%
Rayon
0%
Nylon
0%
Cotton
Explanation
Acrylic
Polymers are made up of small units called
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layers
0%
molecules
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cells
0%
monomers
Explanation
monomers
The strongest synthetic fibre is
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nylon
0%
rayon
0%
polyester
0%
acrylic
Explanation
nylon
Wood pulp is used to make
0%
plastic
0%
wool
0%
jute
0%
rayon
Explanation
rayon
Which of the following is a natural fibre?
0%
Wool
0%
Nylon
0%
PVC
0%
Polythene
Explanation
Wool
Melamine is
0%
thermoplastic polymer
0%
thermosetting polymer
0%
fibre
0%
elastomer
Explanation
thermosetting polymer
Fibre produced in factories is called
0%
man-made fibre
0%
natural fibre
0%
synthetic fibre
0%
both (a) and (c)
Explanation
both (a) and (c)
PET is a
0%
polyester
0%
polyamide
0%
nylon
0%
thermosetting polymer
Explanation
polyester
of the following cannot be recycled?
0%
Toys
0%
Cooker handles
0%
Carry bags
0%
Plastic chair
Explanation
Cooker handles
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