Chemistry GCSE

Oxidation states of iron

What Oxidation states of iron means in Chemistry GCSE, as defined for AQA.

Definition of Oxidation states of iron

Check what you remember

Read the wording for your board, then hide it and explain Oxidation states of iron in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

Reference: AQA

Iron(II) and iron(III) give different colours, so a green precipitate shows the original solution contained iron(II) ions, not iron(III) ions.

AQA · Metal hydroxides (study guide)

Topics that use Oxidation states of iron

Metal hydroxides (AQA GCSE)

Related terms

Using Oxidation states of iron in the exam

Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

Practise Chemistry questions

Create a free account to answer exam-style questions on this topic and get feedback on your answers.

Start free

A week of Premium from your first lesson · Then the free plan continues · No card, no charge

All Chemistry GCSE terms