(I)when ammonium hydroxide is added to blue copper sulphate dropwise ,then pale blue colour PPT. copper hydroxide and on further in excess of ammonium hydroxide ,a deep blue soln. of tetrammine copper sulphate is formed. (ii) when ammonium hydroxide is added drop by drop to colourless zinc sulphate soln. then white gelatinous PPT. of zinc hydroxide is formed which further dissolves in excess and forms colourless soln. of tetrammine zinc sulphate.
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sgwaeutraav
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deepesh10
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here's your answer,
(I)when ammonium hydroxide is added to blue copper sulphate dropwise ,then pale blue colour PPT. copper hydroxide and on further in excess of ammonium hydroxide ,a deep blue soln. of tetrammine copper sulphate is formed.
(ii) when ammonium hydroxide is added drop by drop to colourless zinc sulphate soln. then white gelatinous PPT. of zinc hydroxide is formed which further dissolves in excess and forms colourless soln. of tetrammine zinc sulphate.
hope it helps you......!!