50 ml of CO is mixed with 20 ml of oxygen and sparked. After reaction, the mixture is treated with an aqueous KOH solution.
A. The volume of the CO that reacts is 40 ml.
B. The volume of the CO₂ formed is 40 ml
C. The volume of CO that remains after treatment with KOH is 20 ml
D. The volume of mixture obtained after reaction when treated with KOH solvent remains 10 ml