Q105 / 200 · MHT CET - Medical 2026 (26 April Shift 1) · Chemistry
Identify the oxide used as $\text{CO}_2$ adsorbent and oxygen generator from following.
- A$\text{Na}_2\text{O}$
- B$\text{Na}_2\text{O}_2$
- C$\text{K}_2\text{O}$
- Correct answerD$\text{KO}_2$
Solution
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:
$4\text{KO}_2 + 2\text{CO}_2 \rightarrow 2\text{K}_2\text{CO}_3 + 3\text{O}_2$
Through this reaction, it absorbs carbon dioxide and releases oxygen gas.
Answer: $\text{KO}_2$
The reaction involved is:
$4\text{KO}_2 + 2\text{CO}_2 \rightarrow 2\text{K}_2\text{CO}_3 + 3\text{O}_2$
Through this reaction, it absorbs carbon dioxide and releases oxygen gas.
Answer: $\text{KO}_2$
Hence, the correct answer is option: 'D'.