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.
Create a free account to view solution
View Solution FreeMore Analytical Chemistry Questions
Which one of the following imparts green colour to the burner flame ?...Ammonia/ammonium ion gives yellow precipitate with :...A dark green bead in the borax bead test (in oxidising flame) indicates the presence of :...An aqueous solution contains both Al3+ & Zn2+.To this solution NH4OH is added in excess....An electromagnetic wave in vacuum has the electric and magnetic fields , which are always perpendicular to each other. T...