The process in which a solid state directly converts into vapour form is known as-
Answer
Correct Answer : a ) Sublimation
Explanation :Sublimation is the transition of a substance directly from the solid phase to the gas phase without passing through the intermediate liquid phase.
Sublimation is an endothermic phase transition that occurs at temperatures and pressures below the triple point of a chemical.
The reverse process of sublimation is the process of deposition in which some chemicals pass directly from the gas phase to the solid phase, again without passing though the intermediate liquid phase.
Decantation is the process of separation of imixtures of immiscible liquids or of a liquid and a solid mixture.
Hence, (a) is the correct answer.
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