Lesson 4.2.1.3
4.2.1.3 Ionic compounds Quiz: AQA Chemistry, Unit 2
20 questions
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Lesson 4.2.1.3, Ionic compounds: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 2: Bonding, structure, and the properties of matter, written with Revision Ninja.
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The 20 questions
-
What type of structure do ionic compounds form?
- Small clusters
- Giant structure
- Simple molecules
- Polymer chains
-
What forces hold ions together in an ionic lattice?
- Intermolecular forces
- Electrostatic forces
- Metallic bonds
- Nuclear forces
-
In what directions do electrostatic forces act within an ionic lattice?
- Vertical only
- All directions
- Diagonal only
- Horizontal only
-
What specific structure represents sodium chloride?
- Simple molecular lattice
- Giant ionic lattice
- Giant covalent structure
- Metallic lattice
-
Which diagram type represents a giant ionic structure?
- Ball and stick
- Nested shells
- Polymer chain
- Plum pudding
-
What does a repeating pattern of separate oppositely charged ions indicate?
- Ionic compound
- Simple molecule
- Pure metal
- Covalent network
-
What is a major limitation of two-dimensional ionic diagrams?
- Show wrong ions
- Suggest small molecules
- Omit all charges
- Lack 3D depth
-
What misconception can ball and stick ionic diagrams create?
- Displays exact electrons
- Suggests physical bonds
- Shows correct mass
- Indicates high density
-
What is the empirical formula of a compound with a 1 to 1 ratio of sodium to chloride ions in the model?
- NaCl2
- NaCl
- Na2Cl
- Na2Cl2
-
A model shows 4 positive and 4 negative ions. What is the simplest ratio?
- 1 to 1
- 2 to 1
- 1 to 2
- 4 to 1
-
Which ions make up the standard sodium chloride lattice structure?
- Na- and Cl+
- Na and Cl
- Na2+ and Cl2-
- Na+ and Cl-
-
What do 2D and 3D diagrams of sodium chloride clearly show?
- Ion arrangement
- Electrical power
- Electron transfer
- Boiling points
-
Which compound would be identified as ionic from a structure diagram?
- Hydrogen
- Calcium chloride
- Methane
- Carbon dioxide
-
Why do all models of ionic compounds have limitations?
- They are too expensive
- They lack correct colours
- They require electricity
- Cannot show everything
-
What does an empirical formula show for an ionic compound?
- Simplest ratio
- Total ion count
- Exact molecular mass
- Exact crystal size
-
What is the formula of a compound with two sodium ions for every one oxide ion?
- Na2O
- NaO
- NaO2
- Na2O2
-
How do electrostatic forces behave in an ionic compound?
- Repel nearby atoms
- Decline over time
- Act locally only
- Act everywhere
-
What must a diagram show to prove a compound is ionic?
- Neutral molecules
- Lattice of ions
- Delocalised electrons
- Shared electron pairs
-
What representation fails to show the full detail of a giant ionic lattice?
- Three-dimensional model
- Space-filling model
- Ball and stick model
- Dot and cross pair
-
A model shows 1 Mg2+ ion for every 1 O2- ion. What is the empirical formula?
- Mg2O
- Mg2O3
- MgO
- MgO2
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