JEE Advanced · Chemistry · 31. Practical Chemistry
Upon treatment with ammoniacal , the metal ion that precipitates as a sulphide is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(D)
Step-by-step Solution
Detailed explanation
Among Fe3+, Al3+, Mg2+ and Zn2+, only Zn2+ is precipitated with ammoniacal H2S as ZnS. The group III metal ions, in presence of NH4OH when H2S is bubbled through filtrate Ni2+, Co2+ and Zn2+ are precipitated as sulphides.
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