Deep Dive: Understanding Redox
Part of Oxidation & Reduction — GCSE Chemistry
This deep dive covers Deep Dive: Understanding Redox within Oxidation & Reduction for GCSE Chemistry. Revise Oxidation & Reduction in Chemical Changes for GCSE Chemistry with 20 exam-style questions and 20 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 3 of 13 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 13
Practice
20 questions
Recall
20 flashcards
🔬 Deep Dive: Understanding Redox
OIL RIG
Oxidation Is Loss (of electrons)
Reduction Is Gain (of electrons)
The key insight: Oxidation and reduction ALWAYS happen together. If one substance loses electrons, another must gain them. That's why we call these reactions "redox" — reduction and oxidation happening simultaneously.
Oxidation
- Loss of electrons
- Gain of oxygen
- Loss of hydrogen
- Increase in oxidation state
Reduction
- Gain of electrons
- Loss of oxygen
- Gain of hydrogen
- Decrease in oxidation state