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?

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Solution

i.e.,

Thus, the coordination entity formed in the process is K₂[Cu(CN)₄]. is a very stable complex, which does not ionize to give Cu²⁺ ions when added to water. Hence, Cu²⁺ ions are not precipitated when H₂S₍_g₎is passed through the solution.

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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 $H_{2} S (g)$ is passed through this solution?

Q. A coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate? when

H_{2} S

(g) is passed through this solution?

Q. When an excess of aqueous KCN solution is added to an aqueous solution of copper sulphate, the complex

[C u (C N)_{4}]^{2 -}

is formed. On passing

H_{2} S

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Q. Which compound is formed when excess of

K C N

is added to an aqueous solution of copper sulphate?

Q. When aqueous

K C N

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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?

i.e., Thus, the coordination entity formed in the process is K2[Cu(CN)4]. is a very stable complex, which does not ionize to give Cu2+ ions when added to water. Hence, Cu2+ ions are not precipitated when H2S(g) is passed through the solution.

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?

i.e.,

Thus, the coordination entity formed in the process is K₂[Cu(CN)₄]. is a very stable complex, which does not ionize to give Cu²⁺ ions when added to water. Hence, Cu²⁺ ions are not precipitated when H₂S₍_g₎is passed through the solution.