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A white powder solid A forms a light green solution with water, which one treatment with potassium hexacyanoferrate (III) gives a blue precipitate. On being strongly heated. A leaves a brown residue and forms a mixture off two gaseous oxides, which turns a dichromate solution green and forms a white precipitate with a BaCl_(2) solutio containing concentrated HCl. A is: |
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Answer» `CuSO_(4)` |
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