1. 23. Qualitative Analysis 2 [2021]
We concluded our learning in qualitative analysis, combining our knowledge in cation, anion and gas tests to deduce unknown compounds. QUALITATIVE ANALYSIS (IMPORTANT POINTERS) 1. cations in solution combine with anions (e.g. OH-) from test reagents to form precipitates of different colours and solubility 2. anions in solution combine with cations (e.g. Ba2+ , Ag+) from test reagents to form precipitates 3. inevitably, there are some memory work to do in cation and anions test, focus on the white precipitates