Duration: 3:22

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(More than one options are correct)
\( \mathrm{P} \)
The pair(s) of ions where both the ions are
\( \mathrm{V} \) precipitated upon passing \( \mathrm{H}_{2} \mathrm{~S} \) gas in presence of dilute \( \mathrm{HCl} \), is(are)
(1) \( \mathrm{Ba}^{2+}, \mathrm{Zn}^{2+} \)
(2) \( \mathrm{Bi}^{3+}, \mathrm{Fe}^{3+} \)
(3) \( \mathrm{Cu}^{2+}, \mathrm{Pb}^{2+} \)
(4) \( \mathrm{Hg}^{2+}, \mathrm{Bi}^{3+} \)
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