CAIE IGCSE Chemistry – Tests for Anions & Cations: concise tables for cation results with NaOH/NH₃ (Al³⁺, NH₄⁺, Ca²⁺, Cr³⁺, Cu²⁺, Fe²⁺/Fe³⁺, Zn²⁺) and anion tests (CO₃²⁻, Cl⁻/Br⁻/I⁻, NO₃⁻, SO₄²⁻, SO₃²⁻) with expected observations. 
Includes practical notes (ppt colours/solubility, gas tests) and the syllabus reminder: full test tables are provided only in Papers 5 & 6 (2023–2025).