Please read the Exam Grading Error and Regrade Policy Statement first. For exams given during finals week regrades are not possible, but point total errors or similar administrative problems can be considered. Briefly explain your reasoning for the previous question. The amount of enol present at equilibrium would be increased if there were certain factors that increased the enol form stability.
Acetone enol has no special stability.
The enol of B has conjugation. The enol of C has conjugation and an intramolecular hydrogen bond. Enol C has the greatest amount of stabilization, so dione C has the greatest enol content at equilibrium. Briefly explain your reasoning for the previous question. The lowest pK a corresponds to the compound that most readily gives up a proton to a base.