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Standard IX
Chemistry
Alkali Metals
KO2 is used i...
Question
K
O
2
is used in oxygen cylinders in space and submarines because it:
A
eliminates moisture
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B
absorbs
C
O
2
only
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C
absorbs
C
O
2
and increases
O
2
contents
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D
produces ozone
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Solution
The correct option is
C
absorbs
C
O
2
and increases
O
2
contents
K
O
2
absorbs
C
O
2
and increases
O
2
contents according to the following reaction:
4
K
O
2
+
2
C
O
2
→
2
K
2
C
O
3
+
3
O
2
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