Question on: JAMB Chemistry - 2020

Fractional distillation is a separation technique used to separate miscible liquids with different boiling points. * **A. Nitrogen from liquid air:** Liquid air is a mixture of gases (primarily nitrogen and oxygen) with different boiling points. Fractional distillation can separate these components. * **B. Sodium Chloride from sea water:** Sodium chloride is a solid and can be separated from water by evaporation, not fractional distillation. * **C. Iodine from a solution of Iodine in carbon tetrachloride:** Both iodine and carbon tetrachloride are solids or miscible liquids, but in a liquid solution, they can be separated using fractional distillation. * **D. Sulphur from the solution of sulphur in carbon disulphide:** Both sulphur and carbon disulphide are solids or miscible liquids, but in a liquid solution, they can be separated using fractional distillation.