`KO_(2)` find use in breathing equipment and safeguards the user to breathe in oxygen generated internally in the apparatus without
being exposed to toxic 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)`