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Q.15 Explain why is ortho nitrophenol more acidic than ortho methoxyphenol ?
Answers (1)
Ortho-nitrophenol is more acidic than ortho-methoxyphenol. The presence of the nitro group, which is an electron withdrawing group, at the ortho position decreases the electron density in the O-H bond. Also, the o-nitrophenoxide ion formed after the loss of protons is stabile due to resonance. Hence, ortho nitrophenol is a stronger acid. Whereas the methoxy group is an electron-releasing group. Thus, it increases the electron density in the O-H bond.
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