mostafaghayad

Actually, The answer for this question is very simple, Iodine doesn't dissolve in water because Iodine is a non-polar solute, whereas water is polar solvent. Same thing applies in case of water and oil, why doesn't water mix with oil? thats because water is a polar solvent, while oil is a non-polar solvent. Briefly, polar solutes dissolve in polar solvents, whereas non-polar solutes dissolve in non-polar solvents.