Question Detail
Question
Arrange the following compounds in order of increasing acidity :
Correct Answer
Option A is the correct answer.
Detailed Explanation
Based on the answer, the order of increasing acidity is (1) < (3) < (2). This would correspond to the electron-donating ability of substituents: the weaker the electron-donating group, the more acidic.
Hint
How do substituents affect acidity of phenols?