Which of the following liberates $O_{2}$ upon hydrolysis?

P b_{3} O_{4}

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K O_{2}

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N a_{2} O_{2}

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L i_{2} O_{2}

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Solution

The correct option is B $K O_{2}$
$(a) P b_{3} O_{4} + H_{2} O \to No reaction (due to insoluble in water) (b) Superoxides liberates oxygen with water 2 K O_{2} + 2 H_{2} O \to 2 K O H + H_{2} O_{2} + O_{2} (c) N a_{2} O_{2} + 2 H_{2} O \to 2 N a O H + H_{2} O_{2} (d) L i_{2} O_{2} + 2 H_{2} O \to 2 L i O H + H_{2} O_{2}$

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