What is the chemical formula for acetone?

Acetone is a simple ketone that is commonly used as a solvent and in various chemical processes. Its chemical formula is established based on its molecular composition, which includes three carbon atoms, six hydrogen atoms, and one oxygen atom. This can be confirmed by looking at its structural representation: CH3-CO-CH3, where the central carbon is double-bonded to an oxygen atom (the carbonyl group) and single-bonded to two methyl groups.

The formula C3H6O accurately represents this structure, confirming that acetone consists of three carbons (C), six hydrogens (H), and one oxygen (O). This combination allows acetone to act effectively in various chemical applications, including its role as a polar solvent. The other options do not align with the structural and empirical characteristics of acetone, leading to their rejection as possible formulas for this compound.