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Karim Karan

Asked: 2 years ago2022-11-06T00:14:25+05:30 2022-11-06T00:14:25+05:30In: General Awareness

Black precipitate of copper sulphide dissolves in:
A. `KCN` solution
B. sodium sulphide solution
C. sodium hydroxide
D. boiling dilute `(M)` sulphuric acid.

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Black precipitate of copper sulphide dissolves in:A. `KCN` solutionB. sodium sulphide solutionC. sodium hydroxideD. boiling dilute `(M)` sulphuric acid.