The protons on c3 of pentane-2,4-dione have a pka of approximately 10. using curved arrows, propose a mechanism for the acid-base reaction equation shown below, including an contributing resonance structures that account for the increased acidity of these protons. koh h entane-2,4-dione pka 10

Explanation has been given below.

Explanation:

Protons on C-3 atom are highly acidic due to high stability of the corresponding conjugate base.Stability of conjugate base arises due to presence of two adjacent keto groupsNegative charge on C-3 atom in conjugate base can delocalize through resonance into two adjacent keto groups which renders stability of the conjugate base.Mechanism of the acid-base reaction as well as contributing resonance structures of conjugate acid has been shown below.

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