Which of the following statements is true for phenylalanine in an aqueous solution at pH = pI ?

Options

A. The nonpolar, neutral species `C_(6)H_(5)CH_(2)CH(NH_(2))CO_(2)H` is the most abundantsolute
B. The concentrations of [+] and [-] charged molecular ions are equal.
C. Racemization is rapid
D. This condition is impossible, since pH can never equal pI

Answer

B

Explanation

At Isoelectric point concentration of + Ve ions and - Ve ions are equal.