Which of the following change represents a disproportionation reaction (s) :

Options

A. `Cl_2 + 2OH^- to CIO^(-) + Cl^(-) + H_2O`
B. `Cu_2O + 2H^+ to Cu + Cu^(2+) + H_2O`
C. `2HCuCl_2 overset("Dilution with")(rarr) Cu + Cu^(2+) + 4Cl^(-) + 2H^(+)`
D. All of these

Answer

D