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Which of the following liberates O2 upon hydrolysis

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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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