Which of the following reactions involves disproportionation reaction 2H2SO4+Cu---CuSO4+2H2O+SO2 As2O3+3H2S---As2S3+3H2O 2KOH+Cl2---KCl+KOCl+H2O Ca3P2+6H2O---Ca(OH)2+2PH3

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C l_{2} + K O H \to K C l O_{3} + K C l + H_{2} O

I . N H_{4} N O_{3} Δ \to N_{2} O + 2 H_{2} O

I I . N H_{4} N O_{2} Δ \to N_{2} + 2 H_{2} O

I I I . P C l_{5} Δ \to P C l_{3} + C l_{2}

P b S + 4 O_{3} \to P b S O_{4} + . . . . . . . . . . . . . . .

C u + 2 H_{2} S O_{4} \to C u S O_{4} + . . . . . . . . . . . . . . + 2 H_{2} O

C l_{2} + 2 H_{2} O + S O_{2} \to . . . . . . . . . . . . . . + 2 H C l

I

{N H}_{4} {N O}_{3} Δ - \to N_{2} O + 2 H_{2} O

I I

{N H}_{4} {N O}_{2} Δ - \to N_{2} + 2 H_{2} O

I I I

P {C l}_{5} Δ - \to P {C l}_{3} + {C l}_{2}

C u^{+} \to C u^{2 +} + C u

3 M n O_{4}^{-} + 4 H^{+} \to 2 M n O_{4}^{-} + M n O_{2} + 2 H_{2} O

2 K M n O_{4} \to K_{2} M n O_{4} + M n O_{2} + O_{2}

2 M n O_{4}^{-} + 3 M n^{2 +} + 2 H_{2} O \to 5 M n O_{2} + 4 H^{+}

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