When KCN is added to CuSO4 solution: | Qualitative and Quantitative Analysis — Chem-Mantra

Qualitative and Quantitative AnalysismediumMCQ SINGLE

Question

When KCN is added to CuSO4 solution:

Answer: D

💡 Solution & Explanation

Cu2+ + 2CN^- -> Cu(CN)2 -> CuCN + 1/2 (CN)2 (reducing agent). CuCN + 3KCN -> K3[Cu(CN)4] (complexing agent).

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