Most plastics are made from chemicals obtained from

1
CHEMISTRY DEPARTMENT WAID ACADEMY
Standard Grade Topic 13
2
Most plastics are made from chemicals obtained
from

1. Coal.
2. Plant material.
3. Natural gas.
4. Crude oil.

3
If a material is described as being biodegradable
it can be

1. broken down by bacteria in the soil and rot away.
2. softened by heating.
3. disposed of by burning.
4. easily moulded into different shapes.

4
The toxic gas formed when PVC is burned is

1. hydrogen cyanide.
2. sulphur dioxide.
3. hydrogen chloride.
4. carbon dioxide.

5
A thermoplastic is a plastic material which

1. burns without producing toxic fumes.
2. can be broken down by bacteria in the soil.
3. can be reshaped on heating.
4. does not soften on heating.

6
Electrical plugs and sockets are made from
plastics which are

1. thermosetting plastics.
2. thermoplastic plastics.
3. biodegradable plastics.
4. made from PVC.

7
Plastics are made up of long chain molecules
called

1. monomers
2. polymers
3. residues
4. fractions.

8
The process of joining many small molecules
together to make a plastic is called.

1. Recycling.
2. Incineration.
3. Monomerisation.
4. Polymerisation.

9
The small molecules which are joined together to
make plastics are called

1. Plastimers.
2. Monomers.
3. Elastomers.
4. Polymers.

10
Which monomer is used to make the polymer chain
shown below?

1. A
2. B
3. C
4. D.

11
What would be formed when three of this monomer
are joined?

1. A
2. B
3. C
4. D.