Chemistry
Define:
(a) Evaporation
(b) Filtration
(c) Sublimation
(d) Distillation
(e) Miscible liquids
(f) Immiscible liquids
Answer
(a) Evaporation is the process of converting a liquid into its vapour state either by exposing it to air or by heating.
(b) The process of separating insoluble solid particles from a liquid by allowing it to pass through a filter is called filtration.
(c) The process in which a solid substance directly changes into its vapour state on heating without passing through its liquid state is called sublimation.
(d) Distillation is the method of getting a pure liquid from a solution by evaporating and then condensing the vapours.
(e) Liquids which dissolve in each other completely in all proportions are called miscible liquids.
(f) Liquids which do not dissolve in each other are called immiscible liquids.
Related Questions
What are the characteristic properties of a pure substance? Why do we need them?
Give two examples for each of the following:
(a) Solid + Solid mixture
(b) Solid + Liquid mixture
(c) Liquid + Liquid mixture
Name the process by which the components of following mixtures can be separated.
(a) Iron and sulphur
(b) Ammonium chloride and sand
(c) Common salt from sea water
(d) Chaff and grain
(e) Water and mustard oil
(f) Sugar and water
(g) Cream from milk
How will you separate a mixture of common salt, chalk powder and powdered camphor? Explain.