`KO_(2)` find use in breathing equipment and safeguards the user to breathe in oxygen generated intermally in the apparatus without being exposed to tocixc fumes ouside. The supply of oxygen is due to

Options

A. Slow decomposition of `KO_(2)`
B. Reaction of `KO_(2)` with `CO_(2)` in the exhaled air
C. Reaction of `KO_(2)` with moisture in the essential air
D. Fast decomposition of `KO_(2)`

Answer

B, C

Explanation

`2KO_(2)+CO_(2)rarr K_(2)CO_(3)+(3)/(2)O_(2)`
`2KO_(2)+2H_(2)O rarr 2KOH+H_(2)O_(2)+O_(2)`