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16.0.5 M HCl solution has ions Hg++ , Cd++ , Sr++ , Fe++ , Cu++. To pass the H2S gas in this solution, which are precipitated out : (a) Cd+2 , Fe+2 , Sr+2 (b) Cd+2 , Hg+2 , Cu+2 (c) Hg+2 , Cu+2 , Fe+2 (d) Cu+2 , Sr+2 , Fe+2

Answer» 16.0.5 M HCl solution has ions Hg++ , Cd++ , Sr++ , Fe++ , Cu++. To pass the H2S gas in this solution, which are precipitated out : (a) Cd+2 , Fe+2 , Sr+2 (b) Cd+2 , Hg+2 , Cu+2 (c) Hg+2 , Cu+2 , Fe+2 (d) Cu+2 , Sr+2 , Fe+2


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