Lesson 5.2.2.6
5.2.2.6 Giant covalent structures Quiz: AQA Combined Science, Unit 9
20 questions
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Lesson 5.2.2.6, Giant covalent structures: 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
-
What physical state are giant covalent structures at room temperature?
- Gas
- Plasma
- Liquid
- Solid
-
How are atoms linked together in giant covalent structures?
- Strong covalent bonds
- Metallic bonding
- Weak intermolecular forces
- Electrostatic attraction
-
Which substance is classified as a giant covalent structure?
- Carbon dioxide
- Silicon dioxide
- Sodium chloride
- Water
-
To melt or boil a giant covalent structure, what must be overcome?
- Metallic bonding
- Ionic attractions
- Weak intermolecular forces
- Strong covalent bonds
-
Silicon dioxide is classed as:
- A giant covalent structure
- A giant ionic lattice
- A simple molecular solid
- A metallic giant lattice
-
What is the typical melting point of giant covalent structures?
- Below zero
- Very low
- Very high
- Room temperature
-
Which of these would need the most energy to melt?
- Diamond
- Water
- Methane
- Carbon dioxide
-
Why do giant covalent structures have extremely high melting points?
- Free ions form
- Many bonds broken
- Weak forces broken
- Small molecules separate
-
What melting point would you predict for silicon dioxide?
- High
- Moderate
- Low
- Zero
-
Silicon dioxide melts at a high temperature. Which bonds must be broken?
- Covalent bonds
- Intermolecular forces
- Ionic bonds
- Metallic bonds
-
What is broken when boiling a giant covalent structure?
- Intermolecular forces
- Covalent bonds
- Metallic bonds
- Ionic bonds
-
Which is a giant covalent structure made of silicon and oxygen?
- Silicon hydride
- Sodium silicate
- Silicon chloride
- Silicon dioxide
-
What constitutes a single bond in a giant covalent lattice?
- Electrostatic attraction
- Delocalised sea
- Transfer of electrons
- Shared electron pair
-
Which substance has a much higher melting point due to a giant covalent structure?
- Silicon dioxide
- Water
- Carbon dioxide
- Methane
-
Which change requires breaking covalent bonds in a giant covalent structure?
- Freezing only
- Dissolving only
- Melting or boiling
- Condensing only
-
What structural classification do diamond and graphite both share?
- Ionic lattice
- Giant covalent
- Metallic lattice
- Simple molecular
-
Why is diamond much harder than a pure metal?
- Sliding layers
- Delocalised electrons
- Weak intermolecular forces
- Rigid covalent network
-
What must be broken when melting silicon dioxide compared to small molecules?
- Metallic bonds
- Weak intermolecular forces
- Ionic bonds
- Strong covalent bonds
-
Why is it incorrect to classify diamond as a metal despite its hardness?
- Consists of molecules
- Contains weak bonds
- Has sliding layers
- Lacks delocalised electrons
-
Which substance has the same type of bonding as diamond?
- Methane
- Sodium chloride
- Copper
- Silicon dioxide
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