9
Table 7 3: pKa Values of some Phenols and Ethanol
Compound
Formula
pKa
From the above data, you will note that phenol is million times
more acidic than ethanol Arrange the following compounds in increasing order of their acid strength:
Propan-1-ol, 2,4,6-trinitrophenol, 3-nitrophenol, 3,5-dinitrophenol,
phenol, 4-methylphenol Propan-1-ol, 4-methylphenol, phenol, 3-nitrophenol, 3,5-dinitrophenol,
2,4, 6-trinitrophenol