Explain why is ortho nitrophenol more acidic than ortho methoxyphenol?
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22
The presence of this group in the orthoposition decreases the electron density in the O-H bond. As a result, it is easier to lose a proton. Also, the o-nitrophenoxide ion formed after the loss of protons is stabilized by resonance. ... For this reason,ortho-nitrophenol is more acidic than ortho-methoxyphenol.
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14
Hey !!
The electron withdrawing groups like -NO₂ increase the stability of phenoxide ion by dispersal of negative charge. The electron releasing group like -OCH₃ decrease the acidic strength of phenol by disestablishing the phenoxide ion by concentrating negative charge. Thus, o-nitrophenol is more acidic then o-methoxy phenol.
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