Chemical ChangesExam Tips
Exam Tips for the Reactivity Series
Part of The Reactivity Series — GCSE Chemistry
This exam tips covers Exam Tips for the Reactivity Series within The Reactivity Series for GCSE Chemistry. Revise The Reactivity Series in Chemical Changes for GCSE Chemistry with 20 exam-style questions and 20 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 10 of 11 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Topic position
Section 10 of 11
Practice
20 questions
Recall
20 flashcards
💡 Exam Tips for the Reactivity Series
🎯 Common Question Types:
- Predict whether a displacement reaction occurs (1-2 marks)
- Explain why a metal is more or less reactive than another (3-4 marks)
- Justify the extraction method for a given metal (2-3 marks)
- Write balanced equations for reactions with water or acid (2-3 marks)
- Describe observations when a reactive metal is added to water (2 marks)
📝 Key Command Words:
- Explain: Reference electron structure — shells, distance, shielding, attraction
- Predict: Compare positions in the reactivity series; state whether reaction occurs
- Describe observations: State what you SEE, HEAR, or FEEL — not just what happens chemically
- Justify: Give the reason based on the reactivity series position
⚠️ Common Mistakes to Avoid:
- Confusing aluminium's apparent unreactivity with its true position (Al is above Zn!)
- Saying gold is reactive because it is valuable — it is valuable because it is unreactive
- Forgetting the two reference points: carbon and hydrogen in the series
- Not including state symbols in equations for water reactions
- Writing incomplete "explain reactivity" answers — must mention ALL four factors