To correctly separate and identify Group V cations (), reagents must be added in a specific sequence. Which sequence avoids false positive precipitations?

Question

To correctly separate and identify Group V cations ($Ba^{2+}, Sr^{2+}, Ca^{2+}$), reagents must be added in a specific sequence. Which sequence avoids false positive precipitations?

Prashant Kotian · Accepted Answer

Correct answer: B. Barium must be removed first as (yellow) because it also forms insoluble sulphates and oxalates. Then Strontium is removed as (white). Finally, Calcium is precipitated as (white).

💡 Solution & Explanation

Practice 22,000+ questions like this