1.

The correct order of decreasing acidity of nitrophenols will be

Answer»

m-nitrophenolgtp-nitrophenolgto-nitrophenol
o-nitrophenolgtm-nitrophenolgtp-nitrophenol
p-nitrophenolgtm-nitrophenolgto-nitrophenol
p-nitrophenolgto-nitrophenol-m-nitrophenol

Solution :`NO_(2)` GROUP does not SHOW -R-effect at m-position, therefore, m-nitrophenol is the weakest acid. DUE to intramolecular H-bonding (i.e., chelation) o-nitrophenol is LESS acidic than p-nitrophenol.


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