Qualitative Analysis
Observation-to-inference workflows for cation, anion, and gas identification with practical-paper wording discipline.
This route helps when you keep missing the same type of question across different topics. Use it to combine lesson notes with linked practice and tools in one place.
Notes and Hubs in This Route
- Qualitative Analysis (QA)
Qualitative analysis hub: observation-to-inference method, ion and gas tests, key reagents and exam wording. Practise the topic with its check.
- Qualitative Analysis: Tests for Anions
Tests for carbonate, chloride, iodide, nitrate and sulfate ions, including reagent order, observations, interference and ionic equations.
- Qualitative Analysis: Tests for Cations
Cation tests for aluminium, ammonium, calcium, copper(II), iron(II), iron(III) and zinc using aqueous NaOH and ammonia.
- Qualitative Analysis: Gas Tests
The six K324 / 6092 gas tests for ammonia, carbon dioxide, chlorine, hydrogen, oxygen and sulfur dioxide, with exact observations and equations.
- Qualitative Analysis: Observation and Inference
Qualitative analysis method: state the test and conditions, record the observation, then make an evidence-based inference.
- Salts
Salts: definitions, formulae, solubility rules, precipitate prediction and selecting excess-solid, titration or precipitation methods.
- Tests for Oxidising and Reducing Agents
Use aqueous potassium iodide and acidified potassium manganate(VII) to distinguish oxidising and reducing agents, and separate colour observations from electron-transfer explanations.
- G3 Pure and O-Level Chemistry Practical (Paper 3)
Chemistry Paper 3 practical hub: planning, measurements, tables/graphs, titration, evaluation, and qualitative analysis. Practise the topic with its check.
- Organic Qualitative Tests: What to Know (A Level)
A quick Paper 4 organic tests guide: alkenes (bromine), carbonyls (2,4-DNPH), aldehydes (Tollens/Fehling), and iodoform conditions/results.
- Practical Skills & Qualitative Analysis (A Level)
A Level Paper 4 practical skills and qualitative analysis notes: planning, tables/graphs/uncertainty, titration technique, and key cation/anion/gas tests.
- Qualitative Analysis: Anions and Gases (A Level)
Paper 4-ready anion and gas tests: carbonates, sulfates, halides, nitrates, ammonia, carbon dioxide, chlorine, and sulfur dioxide.
- Qualitative Analysis: Cations (Table) (A Level)
A Paper 4-ready cations table: tests with NaOH/NH3, key precipitate colours, solubility in excess, and confirmatory notes.
- Qualitative Analysis Notes (A Level)
One-page Paper 4 qualitative analysis notes: how to write observations, key ions and gases, and the phrasing examiners expect.