The ion that cannot be precipitated by both \( \mathrm{HCl} \) and \( \mathrm{H}_{2} \mathrm{~S}....

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The ion that cannot be precipitated by both \( \mathrm{HCl} \) and
\( \mathrm{P} \)
\( \mathrm{H}_{2} \mathrm{~S} \), is:
(1) \( \mathrm{Pb}^{2+} \)
(2) \( \mathrm{Sn}^{2+} \)
(3) \( \mathrm{Cu}^{+} \)
(4) \( \mathrm{Ag}^{+} \)


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