Question

Amino acids are synthesised from
A. `alpha`-Halo acids by reaction with `NH_(3)`
B. Aldehydes by reaction with `NH_(3)` and cyanide ion followed by hydrolysis.
C. Alkyl halides by reaction with the enolate anion derived from diethyl acetamidomalonate & hydrolysis
D. Alcohols by reaction with `NH_(3)` and `CN^(-)` ion followed by hydroysis.

Answer 1

Correct Answer - A::B::C
The hydrogen ion concentration of the solution in which a particular amino acid does not migrate under the influence of an electric field is called the isoelectric point (pI) of that amino acid. The isoelectric point (pI) is the pH at which the amino acid exists only as a dipolar ion with net charge zero.