explain how alums helps to separate. suspended impurities. from a mixture of sand and water
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alum is a substance which helps to clean the water.if we keep alum in impure water and kept the container untouched the impure particles become dense and settle down in the bottom of the container.and in this way we are able to purify the water
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3
Answer:
alum is a substance which helps to clean the water. if we keep alum in impure water and kept the container untouched the impure particles become dense and settle down in the bottom of the container. and in this way we are able to purify the water.
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