Analytical ChemistryHard
Question
Which of the following cations form(s) black precipitate(s) with H2S (g) ?
Options
A.Cu2+
B.Sb3+
C.Pb2+
D.Bi3+
Solution
CuS, PbS and Bi2S3 are black precipitates while Sb2S3 is orange coloured precipitate.
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