Figure is the plot of pKa versus Taft Es. There is not at all any correlation of pKa with Taft Es values. For this, several iterations are done between zero and 1.0 for Taft δ. Finally using a value of Taft δ = 0.25 is best suited; the Taft steric reaction constant, figure is made after subtracting the steric effects from pKa. The correlation (figure ) again with the deviation of NH2 (blue square) indicating the strong solvation of 1H tautomer by water forming hydrogen boding (scheme 4B). Application of Taft-Pavelich four parameter equation to the pKa data is another strong indication of the ortho effects originate from 1H-tautomer (scheme 1). The study of Taft-Pavelich four parameter equation from our group is frequently observed in several kinetic studies . From the table 2 it can be seen that the dipole moments of 1H-tautomer are higher than that of 2H-tautomer by 2-3 orders of magnitude indicating that the 1H-tautomer is more polar than the 2H-tautomer . From the table 3 it can be seen that the Taft reaction constants an "Imperishable myth in Organic Chemistry".