Question

how can we seperate mixture of iodine and ammonium chloride

Answer 1

Dear student!

When one of the component of a mixture has the tendency to sublime then we use sublimation process to separate them. But here, as both the ammonium chloride and iodine are sublimate so, the mixture of ammonium chloride and iodine is separated by first dissolving the mixture in water where NH₄Cl dissolves but I₂ being insoluble does not dissolve.

Now, the iodine crystals are filtered by filtration process and then the ammonium chloride solution is further evaporated and distilled to get pure ammonium chloride.