Polymers - exam practice
Polymers
Question 1 of 4
Many molecules of ethene join together to produce poly(ethene).
What is the name given to a molecule, like ethene, that can be bonded to other identical molecules to form a polymer?
Complete the structure of the polymer in the equation below.
Poly(ethene) is the only product of the polymerisation reaction.
What type of polymer is poly(ethene)?
Poly(ethene) can be made with different properties.
The properties depend on the conditions used when poly(ethene) is made.
Suggest two conditions which could be changed when poly(ethene) is made.
Some carrier bags are made from poly(ethene).
Some carrier bags are made from cornstarch.
Suggest two benefits of using cornstarch instead of poly(ethene) to make carrier bags.
Which of the statements below is an advantage of burning used plastic bags?
Small molecules, called alkenes, are used to make polymers.
The image below shows a butene molecule.
Name the polymer made from butene.
Butene is an alkene.
What is the general formula for an alkene?
Draw a diagram to represent the polymer made from butene.
Alkanes, such as butane (C4H10), do not form polymers.
Alkenes, such as butene (C4H8), form polymers.
Explain why.
Many parts of our homes can be made from either polymers or natural materials.
- Carpets can be made from poly(propene), wool, or a mixture of poly(propene) and wool.
- Window frames can be made from poly(chloroethene), HDPE, or wood.
Poly(propene) is produced from propene.
Complete the structure of poly(propene) in the equation.
Poly(propene) wears out more slowly than wool.
A mixture of poly(propene) and wool to make carpets is more sustainable than using just poly(propene) or just wool.
Give two reasons why.
The image below shows the displayed structural formula of poly(chloroethene).
Draw the monomer used to make poly(chloroethene).
Wood can be used instead of polymers to make window frames.
Read the information below:
- Polymers are unreactive.
- Polymers are produced from crude oil.
- Wood breaks down in wet conditions.
- Wood is produced from trees.
Suggest one advantage of using polymers and one advantage of using wood to make window frames.
Different polymers can be formed by using the monomers shown in the image below.
Explain how two different polymers can be formed from monomers in the image.
