Question

A mixture of sand salt and ammonium chloride is provided to you. Which
technique will you use to separate the constituents of it? Explain the steps
involved, draw diagram to show it and write the principle of this technique.​

Answer 1

Explanation:

Step-1: Separate iron filings with the help of a magnet.

Step-2: Sublimation of the remaining mixture separates ammonium chloride when solid directly converts to gaseous vapors.

Step-3: Add water to the remaining mixture, stir and filter out sand by filtration.

Step-4: The filtrate can be evaporated to get back sodium chloride.

Answer 2

Answer:

Ammonium chloride is first separated from the mixture by heating. The technique of sublimation is used.

Next, from a solution of salt and sand in water. Sand is insoluble in water and can be separated by filtration.

The solution now contains only salt and water. Salt can be separated by heating the mixture as only salt will remain in the dish and water will be evaporated.