Question

How did you obtain pure ammonium chloride​

Answer 1

Answer:

Mixture of chlorides can be separated by various separation methods like crystallisation, sublimation of filtration.

The best method to use in this case is sublimation. Both of these compounds are sublimable, but the temperature of sublimation for both these compounds differs widely. Ammonium chloride has lower sublimable temperature and thus will sublime first.

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