`50mL` of `CO` is mixed with `20mL` of oxygen and sparked. After the reaction, the mixture is treated with an aqueous `KOH` solution. Choose the correct option :
(a). the volume of `CO` that reacts `= 30 mL`
(b). volume of `CO_(2)` formed `=50mL`
(c). volume of `CO` that remains after treatment with `KOH = 10mL`
(d). the volume of the `CO` that remains after treatment with `KOH = 20mL`

Options

A. The volume of the CO that reacts is 40 ml
B. The volume of the `CO_(2)` that formed is 40 ml
C. The volume of the `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