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Put the mixture in a beaker, add water and stir. Copper (II) sulphate dissolves while iron (III) oxide does not. Filter the mixture to obtain copper (II) sulphate solution as the filtrate and iron (III) oxide as the residue. Wash the residue with distilled water and dry it between two filter papers.
johnmulu answered the question on February 2, 2017 at 05:18
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