Question

Explain why Ortho nitrophenol is more acidic than Ortho methoxy phenol

Answer 1

ether is attached to phenol..ether is a electron donating group it donates electron to oxygen atom increasing its electron density will decrease its polar nature hence decreasing acidic strength..
hope it helps!
:-)

Answer 2

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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