Chemistry - Complete s-block Question with Solution | TestHub

Potassium superoxide (${\text{KO}}_2$) is widely used as a ${\text{CO}}_2$ adsorbent and oxygen generator in space capsules, submarines, and breathing masks.

The reaction involved is:

$4{\text{KO}}_2+2{\text{CO}}_2\to 2{\text{K}}_2{\text{CO}}_3+3{\text{O}}_2$

Through this reaction, it absorbs carbon dioxide and releases oxygen gas.

Answer: ${\text{KO}}_2$