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Common salt from sea water - Evaporation - After the liquid evaporates, only salt will be left behind.
Chaff from paddy - Winnowing - Difference in the density of the given substances.
Iron powder from a mixture of Iron powder and Aluminium powder - Magnetic Separation - Iron is magnetic but Aluminium is not and therefore, the Iron powder will get attracted to the magnet.
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Common salt from sea water
Filtration
Heavier particles (salt particles) remain and lighter particles (water particles) evaporate .
Chaff from paddy
Winnowing
Heavier particles gather at a place whereas the chaff being light is blown away by the wind .
Iron powder
Magnetic seperation
The iron particles get attracted to the magnet
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