Transcript Most plastics are made from chemicals obtained from

CHEMISTRY DEPARTMENT
WAID ACADEMY
Standard Grade
Topic 13
Most plastics are made from chemicals
obtained from
Coal.
Plant material.
Natural gas.
Crude oil.
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If a material is described as being
biodegradable it can be
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broken down by bacteria in
the soil and rot away.
softened by heating.
disposed of by burning.
easily moulded into different
shapes.
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The toxic gas formed when PVC is
burned is
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hydrogen cyanide.
sulphur dioxide.
hydrogen chloride.
carbon dioxide.
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A thermoplastic is a plastic material
which
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burns without producing
toxic fumes.
can be broken down by
bacteria in the soil.
can be reshaped on
heating.
does not soften on
heating.
bu
1.
Electrical plugs and sockets are made
from plastics which are
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thermosetting plastics.
thermoplastic plastics.
biodegradable plastics.
made from PVC.
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Plastics are made up of long chain
molecules called
monomers
polymers
residues
fractions.
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The process of joining many small
molecules together to make a plastic is
called.
Recycling.
Incineration.
Monomerisation.
Polymerisation.
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The small molecules which are joined together to
make plastics are called
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Plastimers.
Monomers.
Elastomers.
Polymers.
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Which monomer is used to make the polymer
chain shown below?
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1. A
2. B
3. C
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4. D.
What would be formed when three of this
monomer are joined?
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1. A
2. B
3. C
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4. D.