The following molecule can undergo addition polymerisation.
What is the correct repeat unit?
(1)
☐ | A | ||
☐ | B | ||
☐ | C | ||
☐ | D |
Did this page help you?
The following molecule can undergo addition polymerisation.
What is the correct repeat unit?
(1)
☐ | A | ||
☐ | B | ||
☐ | C | ||
☐ | D |
Did this page help you?
Poly(chloroethene) is a polymer.
It is made from its monomer, chloroethene.
C = 38.4% H = 4.8% Cl = 56.8%
(3)
C2H4 + Cl2 → C2H4Cl2
(1)
(1)
(1)
☐ | A | addition | |
☐ | B | displacement | |
☐ | C | neutralisation | |
☐ | D | substitution |
(1)
(1)
c)
chloroethene | repeat unit of poly(chloroethene) |
(3)
(2)
Did this page help you?
Why do addition polymers not biodegrade easily?
(1)
☐ | A | They are inert | |
☐ | B | They contain ionic bonding | |
☐ | C | They are unsaturated molecules | |
☐ | D | They have high density |
Did this page help you?
This question is about alkenes and polymers.
(2)
Molecular formula | C2H4 |
Empirical formula | |
General formula |
(2)
1. ............................................................................
2. ............................................................................
(1)
(2)
Polymers | Polymers from corn starch | |
Cost per tonne | £1500 | £3700 |
Relative strength | 100 | 50 |
Time to decompose | estimated 450 years | 3-6 months |
Use the information in the table and your knowledge to discuss the advantages and disadvantages of using poly(ethene) to make plastic bags.
(5)
Draw the displayed formula of the monomer used to make this polymer.
(1)
Did this page help you?
Which of the following statements about polymers is NOT correct?
(1)
☐ | A | Polymers can be recycled but it is a difficult and expensive process | |
☐ | B | Addition polymers are unsaturated as they are made by combining molecules which contain a carbon double bond | |
☐ | C | Poly(ethene) is formed by the addition polymerisation of ethene monomers | |
☐ | D | Incinerating polymers contributes to climate change |
Did this page help you?
The structure of a polymer is shown below.
What is the correct monomer?
(1)
☐ | A | ||
☐ | B | ||
☐ | C | ||
☐ | D |
Did this page help you?
Which statement is the correct description of a polymer?
(1)
☐ | A | The atoms within a monomer | |
☐ | B | A large saturated hydrocarbon | |
☐ | C | A large molecule made from many small molecules | |
☐ | D | A large unsaturated molecule |
Did this page help you?
a a a a a a |
(2)
Did this page help you?
Polymers can be classified as addition polymers or condensation polymers.
Draw the displayed formula of the monomer used to make this polymer.
(1)
Did this page help you?