Question

While performing the experiment, why the stem of funnel is plugged with
cotton during the separation of ammonium chloride from the mixture of
ammonium chloride, common salt and sand.​

Answer 1

Answer:

Ammonium chloride sublime and can be separated from the mixture of salt and sand by the process of sublimation.

Explanation:

Ammonium chloride sublime and can be separated from the mixture of salt and sand by the process of sublimation.