CBSE Class 11-science Answered
What is lead-sulphide test for sulphur?
Asked by Topperlearning User | 28 Jun, 2016, 04:38: PM
Expert Answer
The sodium fusion extract is acidified with acetic acid and lead acetate is added to it. A black precipitate of lead sulphide indicates the presence of sulphur.
S2- + Pb2+ → PbS
Black
Answered by | 28 Jun, 2016, 06:38: PM
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