Lesson 3.1.3.4
3.1.3.4 Bonding and physical properties Quiz: AQA Chemistry, Unit 1
20 questions
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Lesson 3.1.3.4, Bonding and physical properties: 20 multiple choice questions for the AQA Chemistry (7405), Unit 1: Physical chemistry, written with Revision Ninja.
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The 20 questions
-
Which of these is NOT one of the four types of crystal structure in the specification?
- Metallic
- Ionic
- Molecular
- Ceramic
-
Which type of crystal structure is present in diamond?
- Macromolecular
- Molecular
- Ionic
- Metallic
-
Which of these is an example of a molecular structure?
- Iodine
- Sodium chloride
- Magnesium
- Diamond
-
Which solid has a giant covalent structure and conducts electricity?
- Iodine
- Ice
- Graphite
- Diamond
-
Which crystal structure does sodium chloride have?
- Macromolecular
- Molecular
- Metallic
- Ionic
-
Why is ice less dense than liquid water?
- Open hexagonal lattice
- Closer molecular packing
- Shorter covalent bonds
- Randomly packed molecules
-
Which substance has a high melting point and conducts electricity in the solid state?
- Solid sodium chloride
- Iodine
- Magnesium
- Diamond
-
Why does diamond have a very high melting point?
- Many covalent bonds
- Ionic attractions
- Weak intermolecular forces
- Delocalised electrons
-
Why can graphite conduct electricity throughout its structure?
- Delocalised electrons
- Intermolecular forces
- Mobile positive ions
- Free carbon atoms
-
Why does solid iodine have a low melting point?
- Unstable iodine atoms
- Delocalised electrons
- Weak intermolecular forces
- Weak covalent bonds
-
Which force is overcome when iodine sublimes from solid to gas?
- Covalent bonds
- Metallic bonds
- Intermolecular forces
- Ionic bonds
-
Which type of crystal structure does ice form?
- Macromolecular
- Metallic
- Ionic
- Molecular
-
Why does solid magnesium conduct electricity while solid sodium chloride does not?
- Delocalised electrons move
- Molecules vibrate
- Ions move freely
- Covalent bonds break
-
Why do ionic compounds conduct electricity when molten?
- Electrons are delocalised
- Ions can move
- Molecules dissociate
- Atoms vibrate faster
-
Which of these substances has the highest melting point?
- Ice
- Iodine
- Sodium chloride
- Diamond
-
Why is graphite soft and used as a lubricant?
- Covalent bonds break
- Ions move freely
- Molecules evaporate
- Layers slide easily
-
Which structure type is hard, high-melting, and non-conducting as both solid and liquid?
- Ionic
- Molecular
- Metallic
- Macromolecular
-
Which properties are typical of a molecular crystal such as iodine?
- High melting, conducting
- Low melting, non-conducting
- Low melting, conducting
- High melting, non-conducting
-
Which species allow electrical conductivity in a substance?
- Mobile charge carriers
- Paired electrons
- Neutral molecules
- Fixed ions
-
Which of these is a giant metallic structure?
- Iodine
- Ice
- Graphite
- Magnesium
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