1.

In order to separate a mixture of sand and salt which one of the following four sequences of processes has to be used? (CTET Jan 2012)

A.  Filtration, decantation, evaporation, sedimentation
B.  Evaporation, sedimentation, decantation, filtration
C.  Decantation, sedimentation, evaporation, filtration
D.  Sedimentation, decantation, filtration, evaporation
Answer» B.  Evaporation, sedimentation, decantation, filtration


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