Qualitative Analysis - Result Question 22

22. The ion that cannot be precipitated by both $HCl$ and $H _2 S$ is

(a) $Pb^{2-}$

(b) $Cu^{+}$

(c) $Ag^{+}$

(d) $Sn^{2+}$

(1982,1 M)

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Answer:

Correct Answer: 22. (c)

Solution:

$Ag^{+}$ is precipitated by $HCl$ only while all others are precipitated by passing $H _2 S$ in the presence of $HCl$.