Analytical Chemistry Question 81
Question: 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
Show Answer
Answer:
Correct Answer: A
Solution:
The second group radicals will precipitate because their solubility product is very low so sulphates will be precipitated.
BETA
