Sawdust, mixed in water,cannot be separatedvby the sedimentation method .why
Answers
Explanation:
Answer: Sedimentation and decantation cannot be used to separate sawdust from water because sawdust is not heavier than water. Sedimentation and decantation can only be used to separate an insoluble solid from a liquid if the solid is heavier than the liquid.
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ANSWER :
Sawdust : The particles (of wood) made by saw after cutting. It is lighter than water.
Sedimentation : The process in which the insoluble, heavy solid particles settle down on their own in a solution.
But the mixture of sawdust and water are insoluble. As the sawdust is lighter so it floats. But in sedimentation the substance used to settle down in water. Whereas the sawdust will not settle down in water when the mixture of sawdust and water is kept undisturbed. So, sawdust can not be separated by the process of sedimentation.
The mixture of sawdust and water can be separated by the process of filtration
Filtration : The process of separating insoluble liquids from a liquid using fine pores of the filter.