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Which of the following liberates O2 upon hydrolysis? 

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By Expert Faculty of Sri Chaitanya
a
Pb3O4
b
KO2
c
Na2O2
d
Li2O2
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detailed solution

Correct option is B

(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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