Analytical ChemistryHard
Question
Which one among the following pairs of ions can not be separated by H2S in presence of dilute hydrochloric acid ?
Options
A.Cd2+, Sn2+
B.Al3+, Hg2+
C.Zn2+, Cu2+
D.Ni2+, Bi3+
Solution
Both Cd2+ and Sn2+ are precipitated as yellow sulphides in the presence of dilute HCl.
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