When hydrogen sulphide gas is passed through a blue solution of copper – InterviewSolution

1.	When hydrogen sulphide gas is passed through a blue solution of copper sulphate, a black precipitate of copper sulphide is obtained and the sulphuric acid so formed remains in the solution. The reaction is an example of
Answer» a combination REACTION a DISPLACEMENT reaction a decomposition reaction a DOUBLE decomposition reaction Solution :`CuSO_(4) H_(2)S to CuS + H_(2) SO_(4)` is an example of double decomposition reaction

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