why 4 nitrophenol is more acidic than phenol?

why 4 nitrophenol is more acidic than phenol?
Solution : So, the electron density in the O-H bond of p-nitrophenol decreases relative to the O-H bond of phenol. ... 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.
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Why is Nitrophenol more acidic than phenol?
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. ... Hence, ortho and para nitrophenols are stronger acids than phenol. Feb 19, 2013
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Why para nitrophenol is more stronger acid than phenol and para cresol?
The - CH3 is attached to the para position of phenol. We know that the methyl group in cresol is electron-donating. ... Therefore, it cannot give out H + ions. Therefore, the correct answer is that the - NO2 decreases the electron density on the oxygen of the O-H group making p - nitrophenol a stronger acid.
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