When H2S gas is passed through the blue solution of CuSO4, a black pre – InterviewSolution

1.	When H2S gas is passed through the blue solution of CuSO4, a black precipitate of copper sulphide is obtained and the sulphuric acid formed remains in the solution. The reaction is an example of:
Answer» When $H_{2} S$ gas is passed through the blue solution of $C u S O_{4}$ , a black precipitate of copper sulphide is obtained and the sulphuric acid formed remains in the solution. The reaction is an example of:

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