Testing for Positive Ions 0.0 / 5 ? ChemistryAnalysing substancesGCSEAQA Created by: Kate HCreated on: 08-05-14 20:46 Flame colour of Lithium? Crimson Red 1 of 11 Flame colour of Sodium? Yellow 2 of 11 Flame colour of Potassium? Lilac 3 of 11 Flame colour of Calcium? Red 4 of 11 Flame colour of Barium? Green 5 of 11 How can we test for Aluminium? Forms white ppt. in NaOH solution. When excess NaOH is added to the ppt aluminium hydroxide dissolves 6 of 11 How can we test for Calcium? Forms a white ppt in NaOH solution 7 of 11 How can we test for Magnesium? Forms a white ppt in NaOH solution 8 of 11 How can we test for Copper II? Copper hydroxide forms a blue ppt in NaOH solution 9 of 11 How can we test for Iron II? Iron II hydroxide forms a green ppt in NaOH solutiom 10 of 11 How can we test for Iron III? Iron II forms a brown ppt in NaOH solution 11 of 11
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