{ 44. In which of the following reactions, }H_2O_2 acts }} as oxidising agent? }{ 1) }Cl_2+H_2O_2→2HCl+O_2}{ 2) }Ag_2O+H_2O_2→2Ag+H_2O+O_2}{ 3) }2NaOH+H_2O_2→ Na_2O_2+2H_2O}{ 4) }KNO_2+H_2O_2→ KNO_3+H_2O

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In the reaction $A g_{2} O + H_{2} O_{2} \to 2 A g + H_{2} O + O_{2} . H_{2} O_{2}$ acts as :

H_{2} O_{2}

A g_{2} O + H_{2} O_{2} \to 2 A g + H_{2} O + O_{2}

A g_{2} O + H_{2} O_{2} \to 2 A g + H_{2} O + O_{2}

H_{2} O_{2}

H_{2} O_{2}

(a)

H_{2} O_{2} + 2 H^{+} + 2 e^{-} \to 2 H_{2} O

(b)

H_{2} O_{2} - 2 e^{-} \to O_{2} + 2 H^{+}

(c)

H_{2} O_{2} + 2 e^{-} \to 2 O H^{-}

(d)

H_{2} O_{2} + 2 O H^{-} - 2 e^{-} \to O_{2} + 2 H_{2} O

H_{2} O_{2}

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