A 200 ml mixture of CO and `CO_2` is passed through excess of red hot charcoal causing the following reaction.
`CO_2(g)+C(s) to 2CO(g)`
After passing the gas through charcoal , volume increased to 270 ml. Select the correct statement.
A. Volume percentage of CO in the original mixture is 65%
B. If original mixture was passed through KOH solution volume would have reduced to 70 ml
C. Mole fraction of `CO_2` in the original mixture will be 0.25.
D. Minimum moles of red hot charcoal required for complete conversion of `CO_2` should be 70 millimoles.
