\( \mathrm{Cu}^{2+} \) and \( \mathrm{Ag}^{+} \)are both present in...

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\( \mathrm{Cu}^{2+} \) and \( \mathrm{Ag}^{+} \)are both present in the same solution. To precipitate one of the ions and leaves the other in solution,
P add

W)
(a) \( \mathrm{H}_{2} \mathrm{~S}(\mathrm{aq}) \)
(b) \( \mathrm{HCl}(\mathrm{aq}) \)
(c) \( \mathrm{HNO}_{3} \) (aq)
(d) \( \mathrm{NH}_{4} \mathrm{NO}_{3} \) (aq)
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