Answer:
The separation of ice from dry ice can be done by heating. Dry ice is CO₂(carbondioxide)so when heated it will vanish in the atmosphere and water will be left in the vessel which will be further freezed to form ice.
The mixture of iron filling sand and iodine can be very well separated using magnetic separation because as we know iron is a magnetic material and will be attracted by magnet The mixture of iodine and salt are not attracted by magnet. Common salt, sand and marble can easily be separated by hand making method.
Paper chromatography has become standard practice for the separation of complex mixtures of amino acids, peptides, carbohydrates, steroids, purines, and a long list of simple organic compounds. Inorganic ions can also readily be separated on paper.
