Question

`KO_(2)`(potassium superoxide) is used in oxygen cylinders in space and submarines because it
A. absorbs `CO_(2)` and increases `O_(2)` content
B. eliminates moisture
C. absorbs `CO_(2)`
D. produces ozone

Answer 1

Correct Answer - A
`4KO_(2) + 2 CO_(2) to 2 K_(2)CO_(3) + 3 O_(2)`
Although `KO_(2)` also reacts with moisture of the breath but does not completely eliminate it .
`4 KO_(2) + 2 H_(2)O to 4 KOH + 3 O_(2)`
or `4 KO_(2) + 4 CO_(2) + 2H_(2)O to 4 KHCO_(3) + 3 O_(2)`
For further explanation ,