Which separation technique is best suited to separate a mixture of ammonium chloride and common salt?

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Ammonium chloride (NH₄Cl) sublimes on heating—it directly converts from solid to vapor without passing through the liquid phase—while common salt (NaCl) remains as a solid residue. This property allows separation by sublimation. Filtration would not work because both are soluble in water, distillation is for liquids, and chromatography separates dissolved substances based on differential adsorption. Lab tip: NH₄Cl vapors condense on the cool funnel to give solid sublimate.

Which separation technique is best suited to separate a mixture of ammonium chloride and common salt? MCQ with Answer and Explanation

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