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WorksheetsPlastics and Elastomers
Total questions: 13
Worksheet time: 7mins
Polymers which cannot be recycled are called _____polymers
Thermoplasts
Thermosets
Elastomers
All Polymers
Which of the following polymer is used to make Bullet Proof Glass
PMMA
PVC
Teflon
None
Which of the following polymer is Thermosetting Polymer
Terylene
Polystyrene
Bakelite
Neoprene
Which of the ollowing is a natural polymer?
Bakelite
Silk
Kevlar
Lexan
Which of the following is a synthetic fibre?
Cotton
Rayon
Jute
Silk
Which polymers additive are added to improve the flexibility
Lubricants
Plastisizers
Stabilizers
Reinforcement
Select the incorrect statement from the following option.
Thermosets are formed by condensation polymerisation reactions
Thermosets have 3-D, cross-linked network structure
Thermosets soften on heating and stiffen on cooling
Thermosets are generally insoluble in any solvent
Bakelite is ____________
Gel
Liquid
Solid
Gas
Molecular mass of polymers are expressed as a/an ______
average
median
mode
percentage
What is the trade name for natural polyisoprene?
a) Natural rubber
b) Neoprene
c) Silicone
d) Buna acrylonitrile
Addition of ______ results in the vulcanization of rubber.
a) Nitrogen
b) Sulfur
c) Carbon monoxide
d) Particulate matter
What type of polymer is commonly used in the production of plastic bottles?
Polystyrene
Polyvinyl chloride
Polypropylene
Polyethylene
Which of the following is a property of elastomers?
They dissolve in water
They are brittle
They can stretch significantly
They are thermosetting
