Question

Give reason :-

sublimation is considered a physical change​

Answer 1

Answer:

Sublimation means conversion of solid into gas like dry ice.But, gas can be again changed to solid by deposition or inverse sublimation process. As, we know all reversible reactions are physical reaction. Thus sublimation is considered a physical change.

hope this will help you

Answer 2

Answer:

The correct to this question is

Sublimation is a process in which a solid substance

changes to its vapour state Example Camphor or in hindi (कपूर) in this reaction no new substance is formed

and can be reversed by simple methods