Q 1186178077.     `100` ml mixture of `CO` and `CO_2` is mixed with `30` ml of oxygen and sparked in a eudiometer tube. The residual gas after treatment with aqueous `KOH` has a volume of `10` ml which remains unchanged when treated with alkaline pyrogallol. If all the volumes are under the same conditions, choose the correct option(s)

A

The volume of `CO_2` that gets absorbed by aqueous `KOH` is `90` ml

B

The volume of `CO` that remains unreacted is `10` ml

C

The volume of `O_2` that remains unreacted is `10` ml

D

The volume of `CO` that reacts is `60` ml

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