Learning objective

Determine the processes of oxidation and reduction in redox reactions, using oxidation numbers limited to II and III for naming ions, such as iron(II), iron(III), and copper(II).

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

Cambridge IGCSE Combined ScienceChemical reactionsCore content

Study support

Understand this objective

Quick explanation

This point belongs to Redox, especially Redox outcomes.
You need to be able to determine the processes of oxidation and reduction in redox reactions, using oxidation numbers limited to II and III for naming ions, such as iron(II), iron(III), and copper(II).
The key ideas to know are Identify.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Identify

Why it matters

This objective helps connect Redox outcomes to exam-style questions, flashcards, and revision notes for Redox.

Revision tools

Flashcards10 linked cards

Flashcard 1 of 10

Press Space to flip, arrows to move

Practice Questions7 linked questions

Question 1 of 7

Choose an answer, get feedback, then move sideways through the set.

0 of 5 attempted

Paper 3Theory (Core)2 marks

Description

Consider the reaction between iron(II) ions and copper(II) ions.

a
Explain the changes in oxidation states of iron and copper in this reaction.
Your answer
Aim for approximately 2 distinct marking points.
[2]

Revision notestopic notes

Open the full topic revision notes when you are ready to review this objective in context.

Revision hubs