Lesson 2B.2

2B.2 Predicting structure and physical properties Quiz: Pearson Edexcel Chemistry, Unit 2

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

In partnership with Revision Ninja

Lesson 2B.2, Predicting structure and physical properties: 20 multiple choice questions for the Pearson Edexcel Chemistry (9CH0), Unit 2: Bonding and Structure, written with Revision Ninja.

Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.

Host this setFree Play

The 20 questions

  1. A substance has a high melting temperature, conducts when molten, and dissolves in water. What is the most likely structure?

    • Giant metallic
    • Giant covalent
    • Simple molecular
    • Giant ionic

  2. What structure type is low-melting, non-conducting, and dissolves in non-polar solvents?

    • Giant metallic structure
    • Non-polar simple molecular
    • Giant ionic lattice
    • Giant covalent network

  3. A substance has a high melting temperature, conducts when solid, and is malleable. What is its likely structure?

    • Giant covalent
    • Giant metallic
    • Giant ionic
    • Simple molecular

  4. Why does sodium chloride conduct electricity when molten but not when solid?

    • Molecules separate
    • Electrons become delocalised
    • Covalent bonds break
    • Ions become mobile

  5. An insoluble liquid melting at 25 °C most likely has which structure?

    • Simple molecular
    • Giant covalent
    • Giant metallic
    • Giant ionic

  6. A substance melts at 3500 degrees Celsius, does not conduct, and is insoluble in all solvents. What is its likely structure?

    • Giant metallic
    • Simple molecular
    • Giant ionic
    • Giant covalent

  7. Which type of substance conducts electricity when molten but not when solid?

    • Giant metallic
    • Giant ionic
    • Simple molecular
    • Giant covalent

  8. Which combination of properties indicates a giant covalent lattice?

    • Low melting, non-conducting
    • Conducting when solid
    • High melting, insoluble
    • High melting, soluble

  9. Why does sodium chloride have a high melting temperature?

    • Strong ionic bonds
    • Metallic bonding
    • Weak intermolecular forces
    • Strong covalent bonds

  10. Which substance has a higher boiling temperature, carbon dioxide or silicon dioxide?

    • Carbon dioxide
    • Silicon dioxide
    • Both are equal
    • Neither boils

  11. Which structure type describes a non-conducting substance with a melting point of -20 °C?

    • Giant metallic
    • Simple molecular
    • Giant covalent
    • Giant ionic

  12. Which bonding type is present in a soft solid that conducts electricity?

    • Metallic bonding
    • Hydrogen bonding
    • Covalent bonding
    • Ionic bonding

  13. Which property is characteristic of a simple molecular substance?

    • High boiling temperature
    • High melting temperature
    • Low melting temperature
    • Electrical conductivity

  14. Why does solid sodium chloride conduct electricity only when molten or dissolved?

    • Molecules dissociate
    • Covalent bonds break
    • Ions become mobile
    • Electrons become mobile

  15. Why is propan-1-ol completely soluble in water at room temperature?

    • Forms hydrogen bonds
    • Weak London forces
    • High molar mass
    • Forms ionic bonds

  16. Why do the melting temperatures of Group 1 metals decrease down the group?

    • Larger ionic radius
    • More delocalised electrons
    • Smaller ionic radius
    • Increased nuclear charge

  17. Solid Y melts at 1700 °C and conducts electricity as a solid. What structure is Y?

    • Giant covalent
    • Giant metallic
    • Simple molecular
    • Giant ionic

  18. Why is silicon dioxide insoluble in water at room temperature?

    • Strong covalent bonds
    • Weak intermolecular forces
    • Highly polar lattice
    • High hydration energy

  19. Which of these substances forms a giant ionic lattice?

    • Magnesium oxide
    • Diamond
    • Carbon dioxide
    • Silicon dioxide

  20. Which simple molecular substance is soluble in water due to hydrogen bonding?

    • Hexane
    • Ethanol
    • Iodine
    • Methane

All Pearson Edexcel Chemistry quizzes