Colour Iodide Potassium Solution Potassium Iodide Solution Colour By Ra_Leanna81 01 Sep, 2022 Post a Comment 4K 2 Cr 2 O 7 4K 2 CrO 4 2Cr 2 O 3 3O 2. It will give purple colour I 2 gas. Potassium Iodide And Lea…