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Total questions: 10
Worksheet time: 5mins
A synthetic polymer is _____________.
occur naturally
man-made polymer
can withstand oxidation
has high melting point
The name of process to produce polymer is ____________.
depolymerisation
vulcanisation
polymerisation
oxidation
Which synthetic rubber is used to make lining in cooking utensils?
neoprene
SBR
thiokol
silicone rubber
Which of the following statement is correct?
synthetic rubber has high ability to absorb vibration
synthetic rubber is not resistant to chemicals
natural rubber is softer
natural rubber is more heat resistance
"Both natural and synthetic rubber are good heat and electrical conductor."
Is this statement true or false?
true
false
The picture shows example of ______________.
thermoplastic
thermosetting plastic
Which of the following statement is true about thermoplastic?
it has higher melting point
it cannot be remoulded repeatedly
it cannot be recycled
it does not have cross-links between polymer chains
Which of the following is the example of thermosetting plastic?
polystyrene
nylon
epoxy resin
PVC
Which of the following is used to make the airplane window?
perspex
polypropylene
polythene
melamine
Why bakelite is used to make the electrical plug?
it is hard
it has high melting point
it cannot be remoulded
it is not soluble in organic solvent
