Identifying ions by precipitate colour
What Identifying ions by precipitate colour means in Chemistry A-Level, as defined for OCR.
Definition of Identifying ions by precipitate colour
Check what you remember
Read the wording for your board, then hide it and explain Identifying ions by precipitate colour in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Aqueous sodium hydroxide gives a green precipitate with Fe²⁺ and a red-brown precipitate with Fe³⁺, which helps identify each ion.
Topics that use Identifying ions by precipitate colour
- Transition elements (OCR A-Level)
Related terms
- Balanced ionic equations for precipitation
- Balancing complex half-equations
- bidentate ligands
- Bidentate ligands giving octahedral complexes
- Bond angles and shape prediction
- Boundary cases scandium and zinc
- Calculating oxidation state from a formula
- Catalytic behaviour of transition metals and their compounds
Using Identifying ions by precipitate colour 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.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge