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Effects of substituents on the acidity of phenols: Existence of electron attracting group, (for example-NO2, -X, - NR, -CN, -CHO, -COOH) on the benzene ring increases the acidity of phenol since it enables the ring to draw much more electrons from the phenoxy oxygen and so releasing easily the proton.
The solubility orderof stearic acid in methanol and ethyl acetate agreeswith the polarity order of solvents, but it is not in thecase for stearic acid solubility in ethanol and acetone.This is probably due to the effect of hydrogen bondingproperties of ethanol.