Question

A student was setting up beakers that contained different solutions in order to conduct a laboratory investigation, but the next day he could not tell which beaker contained the starch and water mixture. In order to find out which beaker contained starch, he took small sample from each of the beaker and conducted a test for starch on each of them. Describe the test for starch that the student should use and the result that would indicate the presence of starch

Answer 1

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Step-by-step explanation:

In order to test for starch and distinguish the beaker containing a mixture of startch and water, a small quantity of the solutions in each beaker should be taken and and drops of iodine added. The solution that gives off a blue/black color from the yellow/brown color of the iodine would be the starch water solution.

Generally, starch turns iodine solution to blue/black from the usual yellow/brown color of the substance.