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Question

Which of the following liberates O2 upon hydrolysis?

A
Pb3O4
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B
KO2
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C
Na2O2
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D
Li2O2
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Solution

The correct option is B KO2
(A) Pb3O4+H2O No reaction

(B) 2KO2+2H2O2KOH+H2O2+O2

(C) Na2O2+2H2O2NaOH+H2O2

(D) Li2O2+2H2O2LiOH+H2O2
So, option B is the correct answer.

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