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A closed 10 L vessel contains 1 L water ...

A closed 10 L vessel contains 1 L water gas `(1 : 1 CO : H_(2))` and 9 L air (20 % `O_(2)` by volume) at STP . The contents of the vessel are ignited . The number of moles of `CO_(2)` in the vessel is closed to :

A

`0.22`

B

`0.022`

C

`0.90`

D

`3.60`

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