The coordination number of copper in cuprammonium sulphate is
What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when H2S(g)is passed through this solution?
When an iron nail is placed in copper sulphate solution, we observe colour changes whereas when copper wire is placed in iron sulphate solution, we observe no change in colour. What is the reason behind this change in the test tube?