The correct answer is C. Sublimation.
Sedimentation is the process of particles settling out of a liquid due to gravity. This process can be used to separate a mixture of iodine and potassium chloride, but it will not be very effective because the particles of iodine and potassium chloride are both very small.
Filtration is the process of separating a mixture of solids and liquids by passing the mixture through a filter. The filter will allow the liquid to pass through, but it will trap the solids. This process can be used to separate a mixture of iodine and potassium chloride, but it will not be very effective because the particles of iodine and potassium chloride are both very small.
Distillation is the process of separating a mixture of liquids by boiling the mixture and then collecting the vapor. The vapor will be a pure form of one of the liquids in the mixture. This process can be used to separate a mixture of iodine and potassium chloride, but it will not be very effective because iodine and potassium chloride have very similar boiling points.
Sublimation is the process of a solid changing directly into a gas without passing through a liquid state. This process can be used to separate a mixture of iodine and potassium chloride because iodine sublimes at a much lower temperature than potassium chloride. To separate the
mixture, the mixture would be heated to a temperature above the sublimation point of iodine, but below the sublimation point of potassium chloride. The iodine would sublime and be collected as a gas, while the potassium chloride would remain as a solid.In conclusion, the correct answer is C. Sublimation.