An unidentified organic compound X, con-
taining C, H, and O was subjected to com-
bustion analysis. When 228.4 mg of pure X
was burned 627.4 mg of CO2 and 171.2 mg of
H2O were obtained. Determine the simplest
formula of the compound X.

1. C6H10O2
2. C5H8O2
3. C6H8O
4. C2H4O