1
1 mark
Which solid has a giant covalent lattice structure?
Calcium fluoride
Nickel
Silicon (IV) dioxide
Sulfur
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Bonding & Structure (Cambridge (CIE) A Level Chemistry): Exam Questions
Exam code: 9701
2 hours18 questions
2
1 mark
The table shows the physical properties of four substances, A, B, C and D.
Which substance has a giant ionic lattice?
substance | melting point / °C | boiling point / °C | electrical conductivity of solid | electrical conductivity of liquid | electrical conductivity of aqueous solution |
|---|---|---|---|---|---|
A | −119 | 39 | poor | poor | insoluble |
B | −115 | −85 | poor | poor | good |
C | 993 | 1695 | poor | good | good |
D | 1610 | 2230 | poor | poor | insoluble |
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3
1 mark
Three substances, R, S and T, have the physical properties shown.
substance | melting point / °C | boiling point / °C | electrical conductivity of liquid |
|---|---|---|---|
R | 772 | 1407 | good |
S | 114 | 183 | poor |
T | 1610 | 2205 | poor |
Which row shows the most likely lattice structure for each substance?
R | S | T | |
|---|---|---|---|
A | giant molecular | simple molecular | ionic |
B | ionic | giant molecular | simple molecular |
C | ionic | simple molecular | giant molecular |
D | simple molecular | ionic | giant molecular |
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4
1 mark
Each diagram shows a type of giant lattice structure.
Which row correctly identifies the type of lattice shown in each diagram?
Diagram 1 | Diagram 2 | Diagram 3 | |
|---|---|---|---|
A | giant covalent | giant ionic | giant covalent |
B | giant covalent | giant covalent | giant ionic |
C | giant ionic | giant ionic | giant covalent |
D | giant ionic | giant covalent | giant ionic |
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1
1 mark
Three substances, X, Y and Z, have the physical properties shown.
substance | melting point / °C | boiling point / °C | electrical conductivity of solid | electrical conductivity of liquid |
|---|---|---|---|---|
X | 801 | 1413 | poor | good |
Y | 2852 | 3600 | poor | good |
Z | 3550 | 4827 | good | not known |
Which row gives the identities of substances X, Y and Z?
X | Y | Z | |
|---|---|---|---|
A | CaF2 | KCl | Cu |
B | NaCl | MgO | C (graphite) |
C | NaBr | CaO | C (diamond) |
D | NaBr | BaO | SiO2 |
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2
1 mark
In which physical states does sodium chloride conduct electricity?
solid | molten | aqueous | |
|---|---|---|---|
A | ✓ | ✓ | ✗ |
B | ✓ | ✗ | ✓ |
C | ✗ | ✓ | ✓ |
D | ✗ | ✗ | ✓ |
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3
1 mark
Which substance has the highest melting point?
Calcium oxide
Lithium
Sodium fluoride
Sulfur
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1
1 mark
Which compounds form a giant ionic lattice in the solid state?
silicon dioxide | ammonium sulfate | potassium iodide | |
|---|---|---|---|
A | ✓ | ✓ | ✗ |
B | ✓ | ✗ | ✓ |
C | ✗ | ✓ | ✓ |
D | ✗ | ✗ | ✓ |
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2
1 mark
Which row correctly describes the properties of hydrogen fluoride?
contains localised covalent bonds | highly soluble in polar solvents | lowest bond energy of the hydrogen halides | highest boiling point of the hydrogen halides | |
|---|---|---|---|---|
A | ✗ | ✓ | ✗ | ✓ |
B | ✓ | ✓ | ✗ | ✓ |
C | ✗ | ✓ | ✓ | ✓ |
D | ✗ | ✗ | ✓ | ✗ |
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3
1 mark
Which sequence shows the metal oxides in order of decreasing melting point?
Na2O > MgO > CaO
MgO > CaO > Na2O
MgO > Na2O > CaO
Na2O > CaO > MgO
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