Analytical ChemistryHard
Question
Which of the following metal cation is reduced from its higher oxidation state (+2) to (+1) by both KI solution and excess of KCN solution ?
Options
A.Zn2+
B.Hg2+
C.Cu2+
D.None
Solution
2Cu2+ + 4I- → Cu2I2↓ + I2
Cu2+ + 3CN↓ → CuCN ↓ + (CN)2
Cu2+ + 3CN↓ → CuCN ↓ + (CN)2
Create a free account to view solution
View Solution FreeMore Analytical Chemistry Questions
Precipitate of PbSO4 is soluble in :...When CS2 layer containing both Br2 and I2 (2 : 1) is shaken with excess of chlorine (Cl2) water, the violet colour due t...A blue colouration (in solution or precipitate) is not obtained when :...What product is formed by mixing the solution of K4 [Fe(CN)6] with the solution of FeCl2 in complete absence of air ?...Which of the following cation does not give red colour precipitate/solution with dimethylglyoxime (DMG) in alkaline solu...