JEE Main | 2014Coordination CompoundHard

Question

The equation which is balanced and represents the correct product(s) is

Options

A.Li2O + 2KCl → 2LiCl + K2O
B.[CoCl(NH3)5]+ + 5H+ → Co2+ + 5NH4+ + Cl-
C.[Mg(H2O)6]2+ + (EDTA)4- [Mg(EDTA)]2+ + 6H2O
D.CuSO4 + 4KCN → K2[Cu(CN)4] + K2SO4

Solution

The complex
[CoCl(NH3)5]+ decomposes under acidic medium, so
[CoCl(NH3)5]+ + 5H+ → Co2+ + 5NH4+ + Cl--.

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