CxHy+(x+y/4)O2-->xCO2+y/2H2O 12x+y=9y,即得x:y=2:3
该烃的最简式是C2H3,若该烃为气态炔烃(碳原子数≤4),则可能的结构简式为:
CH三C-CH2CH3或CH3C三CCH3