Qualitative Analysis - Result Question 43
####46. From the solution containing copper (+2) and zinc (+2) ions, copper can be selectively precipitated using sodium sulphide.
(1987, 1M)
Show Answer
Answer:
Correct Answer: 46. $CrO _2 Cl _2$
Solution:
- $ZnS$ is soluble in dil. $HCl$ but $CuS$ does not dissolve in dil. $HCl$.