MHT CET · Chemistry · s Block Elements
Which among the following is used as a source of oxygen in submarine in emergency breathing apparatus?
- A potassium superoxide
- B sodium peroxide
- C rubidium superoxide
- D lithium monoxide
Answer & Solution
Correct Answer
(A) potassium superoxide
Step-by-step Solution
Detailed explanation
Potassium superoxide \(\left(\mathrm{KO}_{2}\right)\) is used as a source of oxygen in submarines in emergency breathing apparatus because it has ability to absorb carbon dioxide and give out oxygen at the same time.
\(4 \mathrm{KO}_{2}+2 \mathrm{CO}_{2} \longrightarrow 2 \mathrm{~K}_{2} \mathrm{CO}_{3}+3 \mathrm{O}_{2} \uparrow\)
\(4 \mathrm{KO}_{2}+2 \mathrm{CO}_{2} \longrightarrow 2 \mathrm{~K}_{2} \mathrm{CO}_{3}+3 \mathrm{O}_{2} \uparrow\)
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