Question

Describe brief activity to show sublimation of ammonium chloride

Answer 1

Activity to show sublimation- 
Take some ammonium chloride in a porcelain dish and cover it with an inverted conical funnel.
Insert some cotton at the opening of the funnel. 
The basin is now heated on a sand bath. 
Ammonium chloride sublimes off as vapours and gets deposited on the cooler parts of the funnel.

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