This key facts covers More Key Facts within Displacement Reactions for GCSE Chemistry. Revise Displacement Reactions in Chemical Changes for GCSE Chemistry with 22 exam-style questions and 20 flashcards. Use this page as part of a wider topic revision path rather than treating it as an isolated fact. It is section 7 of 13 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
📌 More Key Facts
- Thermit reaction: 2Al + Fe₂O₃ → Al₂O₃ + 2Fe (reaches 2500°C — used to weld railway tracks!)
- Halogen reactivity: F₂ > Cl₂ > Br₂ > I₂ (more reactive halogen displaces less reactive)
- Colour changes: CuSO₄ solution is blue, Cu metal is brown/pink; FeSO₄ is pale green
Practice questions for Displacement Reactions
Which statement correctly describes a displacement reaction?
In the reaction between zinc and copper sulfate solution, explain which species is oxidised and which is reduced. Include half equations in your answer. [3 marks]
Quick recall flashcards
What colour is bromine?
Orange/brown
What does OIL RIG stand for?
Oxidation Is Loss (of electrons), Reduction Is Gain (of electrons)