2. Consult a reference book regarding the hazards associated with H₂S. On the basis of this information, explain the mer
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2. Consult a reference book regarding the hazards associated with H₂S. On the basis of this information, explain the mer
2. Consult a reference book regarding the hazards associated with H₂S. On the basis of this information, explain the merits of generating H₂S in the solution in which it is to be used. Briefly explain the chemistry in- volved in this generation.
supernatant liquid Discard if only Group II ions are present. Retain if Group III & IV ions are present. Bi³+, Cd²+, Cu2+, SnCl2- (centrifugation) · H,S, pH 0.5 Bi₂S3, (black) CdS, (yellow- orange) residue CuS, (black- brown) SnS₂ (yellow)