Which of the following liberates O2 upon hydrolysis?

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Pb3O4

KO2

Na2O2

Li2O2

answer is B.

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Detailed Solution

(A) Pb3O4 is insoluble in water or do not react with water. (B) 2KO2+2H2O→2KOH+H2O2+O2(g)↑ (C) Na2O2+2H2O→2NaOH+H2O2 (D) Li2O2+2H2O→2LiOH+H2O2

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