The compound on the right is more acidic.
Work Step by Step
1. Draw the conjugate bases: In both cases, the hydrogen that is connected to the oxygen will be removed, and the oxygen will receive a negative charge. 2. Compare them: The only difference between them is caused by induction. - Fluoride is more electronegative than Chloride, which means that the conjugate base from the compound on the right is more stable. - Therefore, the compound on the right is more acidic.