QAIPMT-2005-Ch-2508: NEET 2005 Chemistry - Class 12 AIPMT-2005-Ch-2508 Solution: Which one of the following compounds is most acidic?

Phenols are more acidic than alcohols as they are resonance stabilised whereas alcohols are not. Further �NO 2 is an electron withdrawing group which increases acidic character and facilitates release of proton, whereas �CH 3 is an electron donating group which decreases acidic character, thus removal of H + becomes difficult.