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Chemistry Quiz - Plastics
1. Long-chain molecules, either synthetic or natural, made by bonding many smaller molecules are called:
A plastics
B polymers
C monomers
2. Examples of natural polymers are:
A nylon and polyester
B polythene and PVC
C proteins and silk
3. The raw materials for making plastics come from:
A other plastics
B proteins
C crude oil
4. Polymers are made by bonding smaller molecules called:
A monomers
B polyesters
C PVC
5. The name given to the chemical reaction that joins repeating units together to form polymers is:
A plasticising
B plastic welding
C polymerisation
6. If monomers of ethene were joined, the plastic made would be:
A polyester
B polythene
C polypropylene
7. PVC (polyvinyl chloride) is made by joining together:
A ethene molecules
B propene molecules
C vinyl chloride molecules
8. The polymerisation process in which the double bonds in smaller alkene molecules are broken by catalysts and then they are joined into long-chain polymers is called:
A addition polymerisation
B bonding polymerisation
C condensation polymerisation
9. What is the name of the polymerisation process where water is produced when the monomers join to make a polymer?
Acondensation polymerisation
Bbonding polymerisation
Caddition polymerisation
10. What type of plastics can be heated and reshaped?
Athermoplastics
Bthermosetting plastics
Call plastics
11. What type of plastics do not melt when heated but will eventually burn at high temperatures?
Aall polyesters
Bthermoplastics
Cthermosetting plastics
12. The type of plastic that is suitable for use as saucepan handles is:
Aall plastics
Bthermosetting plastics
Cthermoplastics
13. An example of an object that is moulded by injection moulding is a:
Aplumbing pipe
Bstraw
Ccup
14. The moulding process termed extrusion makes objects such as a:
Abreakfast bowl
Bplumbing pipe
Csoftdrink bottle
15. Softdrink bottles are made by the moulding process called:
Ablow moulding
Binjection moulding
Cextrusion

 

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