Which of the following compounds can be represented by the molecular formula C2H6O?

Ethanol can be represented by the molecular formula C2H6O. The molecular formula of a compound gives you the number of atoms of each element that are present in one molecule of the compound. In this case, the molecular formula C2H6O tells us that there are two carbon atoms, six hydrogen atoms, and one oxygen atom in one molecule of the compound. Ethanol is a common alcohol that is used in many products, including alcoholic beverages, fuel, and solvents. Its molecular formula is C2H6O, which matches the formula given in the question. Propane (not Propanel) has the molecular formula C3H8, methanoic acid has the molecular formula HCOOH, and glucose has the molecular formula C6H12O6. Therefore, the only compound among the options that matches the molecular formula C2H6O is ethanol.