Lesson 5.2.2.5
5.2.2.5 Polymers Quiz: AQA Combined Science, Unit 9
20 questions
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Lesson 5.2.2.5, Polymers: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 9: Bonding, structure, and the properties of matter, written with Revision Ninja.
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The 20 questions
-
Polymers have:
- Very large molecules
- Giant ionic lattices
- Very small molecules
- Free electrons
-
Within polymer molecules, atoms are linked by:
- Weak hydrogen bridges
- Strong covalent bonds
- Metallic bonds
- Ionic bonds
-
Intermolecular forces between polymer molecules are:
- Metallic
- Non-existent
- Relatively strong
- Very weak
-
Polymers are usually at room temperature:
- Solids
- Gases
- Liquids only
- Plasma
-
What feature helps identify polymers in structural diagrams?
- Metal lattices
- Repeating units
- Isolated atoms
- Free ions
-
Polystyrene is a:
- Polymer
- Ionic compound
- Noble gas
- Giant metallic structure
-
Why are polymers solid at room temperature unlike methane?
- Strong intermolecular forces
- Free mobile ions
- Weak covalent bonds
- Delocalised electrons
-
How are atoms joined together along each polymer chain?
- Covalent bonds
- Metallic bonds
- Intermolecular forces
- Ionic bonds
-
How is a long polymer chain best classified structurally?
- Ionic lattice
- Metallic structure
- Giant molecule
- Small molecule
-
Why does poly(ethene) have a higher melting point than methane?
- Larger molecules
- Ionic bonding
- Smaller mass
- Weak forces
-
Which substance is a polymer?
- Chlorine
- Poly(propene)
- Carbon monoxide
- Ammonia
-
What bonds and forces are present in polymers?
- Metallic within chains
- Covalent between chains
- Ionic within chains
- Covalent within chains
-
Which structural feature is most consistent with a polymer diagram?
- Isolated sphere
- Simple pair
- Repeating chain
- Crystal lattice
-
Why do solid polymer chains not conduct electricity?
- Weak covalent bonds
- Ionic lattices
- Delocalised electrons
- No free ions
-
Polymer Y melts at 300 °C while polymer X melts at 150 °C. Which has stronger intermolecular forces?
- Polymer X
- Neither has forces
- Polymer Y
- Both are equal
-
How do intermolecular forces in polymers compare to their covalent bonds?
- Exactly equal
- Completely absent
- Much weaker
- Much stronger
-
Why do polymers have relatively high melting points for molecular substances?
- Giant covalent bonds
- Metallic bonding
- Strong intermolecular forces
- Ionic crystal lattices
-
When a polymer melts, which bonds remain completely unbroken?
- Hydrogen bonds
- Ionic bonds
- Covalent bonds
- Metallic bonds
-
What does a polymer repeating unit indicate about its structure?
- Identical joined units
- Random atom mixing
- Metallic crystal lattices
- Single isolated atoms
-
How are neighbouring carbon atoms linked along a polymer chain?
- Ionic bonds
- Intermolecular forces
- Covalent bonds
- Metallic bonds
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