12.5.1—Anion tests
- Syllabus
- 0620–2026–2027
- Objective
- 12.5.1
- Level
- —
12.5.1—Anion tests
- Describe anion tests: carbonate + dilute acid then CO2 test; halides (Cl-/Br-/I-) acidified with dilute HNO3 then aqueous AgNO3; nitrate with Al foil + aqueous NaOH then NH3 test; sulfate acidified with dilute HNO3 then aqueous Ba(NO3)2; sulfite with acidified KMnO4
ConceptIGCSE Chemistry