1.

Which one is used as an air purifier in space craft?(a) Quick lime (b) Potassium super oxide (c) Caustic soda(d) H2O2 

Answer»

Correct option (b) Potassium super oxide

Explanation:

KO2 give KOH, H2O2 and O2 with water, H2O2 oxidises CO to CO2 which is absorbed by KOH 



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