Which of the following compounds exhibits tautomerism? — GOC and Organic Chemistry Basics Chemistry Question

💡 Solution & Explanation

Tautomerism (keto-enol) requires a carbonyl group with at least one acidic $\alpha$ -hydrogen. 2-Pentanone ($CH_3-CO-CH_2-CH_2-CH_3$) has $\alpha$ -hydrogens and exists in dynamic equilibrium with its enol form.