JEE Advance - Chemistry (2013 - Paper 1 Offline - No. 15)
Upon treatment with ammoniacal H2S, the metal ion that precipitates as a sulphide is
Fe(III)
Al(III)
Mg(II)
Zn(II)
Explanation
On treatment with H2S, Zn(II) gets precipitated as ZnS. Mg(II) does not get precipitated, while Fe3+ and Al3+ get precipitated as hydroxides.
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