Which of the anhydrous salts when come in contact with water turns blu – InterviewSolution

1.	Which of the anhydrous salts when come in contact with water turns blue
Answer» Ferrous SULPHATE Copper sulphate Znic sulphate Cobalt sulphate Solution :CU(II) COMPLEXES are blue. The four water MOLECULES are attached with secondary valencies of the metal atom e.g. `[Cu(H_(2)O)_(4)] SO_(4).H_(2)O`.

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