Question

Why o & p nitrophenol are more acidic than phenol ?

Answer 1

$ASSALAMUALAIKUM$

The nitro-group is an electron-withdrawing group. The presence of this group in the ortho or para position decreases the electron density in the O?H bond. As a result, it is easier to lose a proton. Also, the o-nitrophenoxide or p-nitrophenoxide ion formed after the loss of protons is stabilized by resonance. Hence, ortho and para nitrophenols are stronger acids than phenol.

$INSHAALLAH it will help you!$

$\mathbb{\huge{A.K.}}$

Answer 2

Answer:

Nitro group of phenol produces -I and -R effect. Because of these two effects -NO2 group is electron withdrawing in nature. ... The decrease in electron density of the O-H bond of p-nitrophenol, the polarity of O-H bond is decreases and in turn make it more acidic than phenol

JAI SHRI RAM