Question

KO2 (potassium superoxide) is used in oxygen cylinders in space and submarnies because it 

Solution

Correct option is

Absorbs CO2 and increases O2 content

 

  

Although KO2 also reacts with moisture of the breath but does not completely eliminate it.   

  

SIMILAR QUESTIONS

Q1

A metal M readily forms water soluble sulphate MSO4, water insoluble hydroxide M(OH)2 and oxide MO which becomes inert on heating. The hydroxide is soluble in NaOH. The metal M is

Q2

On dissolving moderate amount of sodium metal in liquid NH3 at low temperature, which one of the following does not occur?

Q3

Which of the following chemicals is not present in clear hard water?

Q4

Identify the least stable ion amongst the following

Q5

Which of the following has maximum lattice energy?

Q6

 

The solubility in water of sulphates down the Be group is:

Be > Mg > Ca > Sr > Ba. This is due to

Q7

Which of the following is the correct order of gradually decreasing basic nature of the oxides?

Q8

A metal M readily forms water soluble sulphate MSO4, water insoluble hydroxide M(OH)2 and oxide MO which becomes inert on heating. The hydroxide is soluble in NaOH. The metal M is

Q9

On dissolving moderate amount of sodium metal in liquid NH3 at low temperature, which one of the following does not occur?

Q10

On passing hydrogen over heated palladium, the gas