12 mol gaseous mixture of an alkane and an alkene (containing same number of carbon atoms) require exactly 285 ml of air (containing 20% v/v `O_(2)` and rest `N_(2)` ) for complete combustion at 200K . After combustion when gaseous mixture is passes through KOH solution it shows volume contraction of 36 ml.
Mole fraction of `CO_(2)` in final gaseous sample:
A. `(6)/(51)`
B. `(6)/(44)`
C. `(6)/(45)`
D. `(6)/(13)`
