Write the IUPAC name and structural formula of the simplest ketone that has three carbon atoms in its chain.

Question

Accepted Answer

## Model Answer **IUPAC name:** Propanone **Structural formula:** CH₃—C(=O)—CH₃ ## Explanation The simplest ketone has the carbonyl group (C=O) flanked by carbon atoms, requiring a minimum of 3 carbons. The suffix for ketone is **-one**, and dropping the final 'e' from propane gives **propanone**. Examiners expect both the name and structural formula.

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