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Chemistry
Which of the following liberates O 2 upon hydrolysis?
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Q. Which of the following liberates $O _{2}$ upon hydrolysis?
JEE Advanced
JEE Advanced 2020
A
$Pb _{3} O _{4}$
18%
B
$KO _{2}$
73%
C
$Na _{2} O _{2}$
9%
D
$Li _{2} O _{2}$
0%
Solution:
$2 KO _{2}+2 H _{2} O \rightarrow 2 KOH + H _{2} O _{2}+ O _{2}$