Analytical Chemistry Question 81
A 0.3 M $ HCl $ solution contains the following ions $ H{g^{+}}, $ $ C{d^{+}}, $ $ S{r^{+}}, $ $ F{e^{+}}, $ $ C{u^{+}} $ The addition of $ H_2S $ to above solution will precipitate
[CPMT 1973]
Options:
A) Cd, Cu and Hg
B) Cd, Fe and Sr
C) Hg, Cu and Fe
D) Cu, Sr and Fe
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Answer:
Correct Answer: A
Solution:
The second group radicals will precipitate because their solubility product is very low, so sulphates will be precipitated.
BETA
