b. What is sedimentation-decantation? What impurities does it remove? What are the
disadvantages of using this method of purification?
(3 marks)
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Verified. Settling down of heavier insoluble particles/ solids from a mixture is called sedimentation. Like mud settles from muddy water.
Decantation is pouring out of upper clear layer of liquid into another container to separate two immiscible liquids.
Explanation:
Disadvantages: It cannot separate solids or liquids that dissolve in the mixture. It cannot separate salt from water, for example. It also cannot separate light solid impurities like chalk powder from water since they are too light and hence do not settle at the bottom for a long time.
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Answer:
sorry sister don't know sorry
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