s by the suggested manor of Methods #26a and #26b.b. Determine the activity series for some halogens.In this part you will test to see if the halogens Cl , Br ,and I ,can be reduced by the halide ion Cl , Br , and I . To determine what products will be formed, you will need to have a test, which will tell which halogen is present, Halogens dissolve in the nonpolar solvent mineral oil forming different color solutions. Mineral oil does not dissolve in water, but when shaken with an aqueous halogen solution, the halogen is extracted from the water into the mineral oil. The color of the mineral oil layer indicates which halogen is present.First, test to see what color each halogen shows in mineral oil. Place 1 dropper full of chlorine water, 1 dropper of Bromine water, and 1 dropper of iodine water into separate 10mm test tubes. Add one dropper of mineral oil to each, cork the tube and shake it for ten seconds. Let the mineral oil layer separate and record the color that each halogen shows when dissolved in mineral oil.Test to see if the halide ions give a color to mineral oil. Place 1 dropper of NaCl, KI, and NaBr solutions into different test tubes, add a dropper of mineral oil to each, cork and shake to determine if the halide ions impart a color to the mineral oil layer. Report your data. React each halogen with the other two halide ions to see if a halide ion can reduce other halogens. Place 1 dropper of NaBr solution into one test tube and 1 dropper of KI solution into a second test tube. Add 1 dropper of chlorine water to each, cork and shake to mix. Now add 1 dropper of mineral oil, cork and shake again. When the mineral oil layer has separated, record its color and determine if a reaction has occurred. Record your data. If chlorine appears no reaction has occurred, if either bromine or iodine appears there was a reaction.Repeat the test using bromine water mixed with NaCl and KI solutions, and iodine water mixed with CaCl and N...
