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Question
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Solution
Initially when ammonium solution is added to aqueous solution of copper sulphate a bluish precipi tate of copper hydroxide is obtained which dissolves in excess of ammonium hydroxide.
\[\ce{CuSo4 + 2NH4OH -> (NH4)2SO4 + Cu(OH)2}\]
\[\ce{Cu(OH)2 + (NH4)2SO4 + 2NH4OH -> [Cu(NH3)4]SO4 + 4H2O}\]
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