Final answer:
The organic compound in which hydrogen and oxygen are present in the same ratio as in water is acetic acid (vinegar).
Step-by-step explanation:
The organic compound in which hydrogen and oxygen are present in the same ratio as in water is acetic acid (vinegar). Acetic acid has a molecular formula of C2H2O2, which means it has a 1:1:2 ratio of carbon, oxygen, and hydrogen. Ethanol, methanol, and glucose do not have the same ratio of hydrogen and oxygen as water.