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Question
KO2 (potassium superoxide) is used in oxygen cylinders in space and submarines because it ______.
Options
absorbs CO2 and increases O2 content
eliminates moisture
absorbs CO2
produces ozone
MCQ
Fill in the Blanks
Solution
KO2 (potassium superoxide) is used in oxygen cylinders in space and submarines because it absorbs CO2 and increases O2 content.
Explanation:
\[\ce{4KO2 + 2CO2 -> 2K2CO3 + 3O2}\]
As an oxidising agent, KO2 is used. It is used in space capsules as an air purifier. It is used in submarines and breathing masks because it produces oxygen and removes carbon dioxide.
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