In which of the following reactions, $H_{2} O_{2}$ acts as oxidizing agent?

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

moist

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2 N a O H + H_{2} O_{2} \to N a_{2} O_{2} + 2 H_{2} O

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K N O_{2} + H_{2} O_{2} \to K N O_{3} + H_{2} O

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

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Solution

The correct option is B $K N O_{2} + H_{2} O_{2} \to K N O_{3} + H_{2} O$
$K N O_{2} + H_{2} O_{2} \to K N O_{3} + H_{2} O$ , hydrogen peroxide acts as an oxidizing agent. It oxidizes $K N O_{2}$ to $K N O_{3}$ . The oxidation state of N increases from +3 to +5.

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Similar questions

H_{2} O_{2}

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

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 :

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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