Answer
The compound on the left is more acidic.
Work Step by Step
1. Draw the conjugate bases.
- In both cases, remove the hydrogen, and give the oxygen a negative charge.
2. Compare these bases.
The only significant difference is caused by induction:
- Alkyl groups act like electron donators, which makes the oxygen with the negative charge less stable.
- Since the structure on the left has less alkyl groups, it is more stable.
- Therefore, the compound on the left is more acidic.
