1.

Suggest a method of separation for a mixture of sodium chloride and ammonium chloride. Explain the process.

Answer»

Solution :Mixture of NACL and `NH_(4)Cl` can be separated by sublimation.
Process
Ammonium chloride and sodium chloride mixture is TAKEN ina porcelain dish.
It is covered by an inverted funnel. The opening of the stem of the funnel is closed by means of a cotton plug. The outside of the funnel is kept cool by wrapping with wet blotting paper.
On heating the porcelain dish, ammonium chloride changes into vapour state, which on coming in contact with the inner wall of the cooled funnel CONDENSES into the original solid and GETS collected there.


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