$K O_{2}$ finds use in oxygen cylinders used for space and submarines. The fact(s) related to such use of $K O_{2}$ is/are :

It produces

O_{2}

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It produces

O_{3}

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It absorbs

C O_{2}

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It absorbs both

C O

and

C O_{2}

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Solution

The correct options are
A It produces $O_{2}$
C It absorbs $C O_{2}$
$K O_{2}$ is used in oxygen cylinders for space and submarines. Because it absorbs $C O_{2}$ and release $O_{2}$ .
$4 K O_{2} + 2 C O_{2} \to 2 K_{2} C O_{3} + 2 O_{2}$ .

Hence A & C are correct.

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