Question

Sublimation of ammonium chloride is a physical changes. Why?
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Answer 1

Answer:

, in this reaction when the ammonium chloride or solution of ammonium chloride is strongly heated above the temperature of 340∘C, the white solid ammonium chloride is converted into two gases ammonia and hydrogen chloride. Since the solid form is converted into gas, hence it is a physical change

Explanation:

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Answer 2

Answer:

As it involves change in state from solid to gas, there in no change in its chemical properties. Thus sublimation of ammonium chloride is a physical change.