Separation of
mixture
1)Sublimation:-In this process, a solid substance passes direct into its vapours on application of heat. The vapours when cooled, give back the original substance. Ex- iodine, naphthalene, ammonium chloride etc.
2)Filtration:-In this process, for quick and complete removal of suspended solid particles from liquid, by passing the suspension through a filter paper.
3)Evaporation:-If a solution of solid substance in a liquid is heated, the liquid gets converted into its vapours and slowly goes off completely. This process is called evaporation.
Ex- water in summer from ponds, wells and lakes.
4)Crystallization:- In this process, the impure solid or mixture is heated with suitable solvent to its boiling point and the hot solution is filtered. The clear filtrate is cooled slowly to room temperature, when pure solid crystallizes out.
1)Sublimation:-In this process, a solid substance passes direct into its vapours on application of heat. The vapours when cooled, give back the original substance. Ex- iodine, naphthalene, ammonium chloride etc.
2)Filtration:-In this process, for quick and complete removal of suspended solid particles from liquid, by passing the suspension through a filter paper.
3)Evaporation:-If a solution of solid substance in a liquid is heated, the liquid gets converted into its vapours and slowly goes off completely. This process is called evaporation.
Ex- water in summer from ponds, wells and lakes.
4)Crystallization:- In this process, the impure solid or mixture is heated with suitable solvent to its boiling point and the hot solution is filtered. The clear filtrate is cooled slowly to room temperature, when pure solid crystallizes out.
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