Chemistry — Redox and Electrochemistry

Exam board: AQA  |  Back to subjects

Board-Specific Note

AQA specification; content aligns with the national A-Level syllabus.

Learning Objectives

• Assign oxidation states
• Balance redox equations
• Use electrochemical series

Key Points

• Oxidation number rules
• Redox = reduction and oxidation
• Standard electrode potentials

Lesson Plan (50 minutes)

1. Starter (5 min): Recall prior knowledge of redox and electrochemistry with quick questions.
2. Teaching (15 min): Work through each of the learning objectives, explaining principles step by step.
3. Key points review (5 min): Revisit the key points together, confirming understanding.
4. Worked example (10 min): Model the example question: Oxidation state of Mn in MnO₄⁻?. Solution: +7
5. Practice (10 min): Students attempt the practice questions independently; circulate and support.
6. Plenary (5 min): Review answers and address misconceptions.

Homework

• Assign oxidation states in H₂O
• Balance Zn → Zn²⁺ + 2e⁻
• Which metal is more reactive in the series?

Assessment

Check practice answers against the model answer; use the built-in practice questions as formative assessment.