I. The reaction between iodate and bisulfite in acid medium produces iodine. Solutions A (iodate) and B (bisulfite) are mixed at room temperature in differing concentrations, producing a blue-black ...

7. Iodine is used to test for starch Liquid iodine is used in chemistry labs as a detector for starches. A solution of iodine and potassium iodide is dripped on to a substance and if it contains ...

Only the parts that were green become blue/black with iodine solution ... The leaf on the right shows a positive test for starch in the areas which contained chlorophyll, and a negative test ...

As you might expect, glucose test strips are highly proprietary ... The first reaction in the video below demonstrates how iodine and starch can be used as a reagent to detect peroxide.