Lesson 5.2.1.3
5.2.1.3 Ionic compounds Quiz: AQA Combined Science, Unit 9
20 questions
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Lesson 5.2.1.3, Ionic compounds: 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 is the overall structure of an ionic compound?
- Giant lattice
- Discrete chain
- Simple molecule
- Delocalised sea
-
What holds ionic compounds together?
- Metallic bonding
- Electrostatic forces
- Shared electron pairs
- Intermolecular forces
-
In what direction do forces of attraction act within an ionic lattice?
- Vertically only
- Horizontally only
- Diagonally only
- All directions
-
What type of structure does sodium chloride have?
- Simple molecular
- Giant ionic lattice
- Giant covalent
- Metallic alloy
-
Which is the empirical formula of sodium chloride?
- Na₂Cl
- NaCl
- Na₂Cl₂
- NaCl₂
-
What do 2D dot and cross diagrams fail to show for giant ionic structures?
- 3D lattice
- Electron shells
- Relative charges
- Atomic mass
-
Which ionic compound's structure must students know?
- Sodium chloride
- Magnesium oxide
- Potassium iodide
- Calcium fluoride
-
What feature indicates an ionic compound in a structural diagram?
- Oppositely charged ions
- Neutral metal atoms
- Shared electron pairs
- Delocalised electrons
-
A diagram shows alternating Na⁺ and Cl⁻ ions in a repeating array. What bonding is shown?
- Ionic
- Covalent
- Metallic
- Polymeric
-
A model shows 3 Mg²⁺ ions and 6 F⁻ ions. What is the empirical formula?
- Mg₃F₆
- MgF₃
- MgF₂
- MgF
-
A model shows one Ca²⁺ ion for every two Cl⁻ ions. What is the empirical formula?
- CaCl₂
- CaCl
- Ca₂Cl
- CaCl₃
-
What limitation applies to ball-and-stick diagrams of giant ionic lattices?
- Indicates small molecules
- Depicts delocalised ions
- Implies separate molecules
- Shows correct charges
-
How many oppositely charged ions surround each ion in a sodium chloride lattice?
- Four
- Two
- Eight
- Six
-
Which diagram feature indicates an ionic compound?
- Discrete molecules
- Lattice of ions
- Metallic bonding
- Shared electrons
-
Why do electrostatic forces in an ionic lattice act in all directions?
- Repels distant ions
- Attracts all neighbours
- Only attracts pairs
- Involves shared electrons
-
Which compound has a giant lattice rather than discrete molecules?
- Carbon dioxide
- Ammonia
- Magnesium oxide
- Methane
-
Why is an empirical formula used for ionic compounds?
- Measures molar mass
- Shows ion ratio
- Shows exact molecules
- Indicates bond length
-
What is a major limitation of 2D diagrams for giant ionic structures?
- Flat representation
- Too many atoms
- Shows 3D depth
- Incorrect ion charges
-
Which particles are present in solid sodium chloride?
- Na⁺ and Cl⁻
- Na and Cl atoms
- NaCl molecules
- Na²⁺ and Cl²⁻
-
Does solid sodium chloride contain discrete NaCl molecules?
- Only in solution
- Only when molten
- No
- Yes
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