Question: The increasing order of pKa of the following amino acids in aqueous solution is :
Gly Asp Lys Arg
Asp $<$ Gly $<$ Arg $<$ Lys
$\operatorname{Arg}<$ Lys $<$ Gly $<$ Asp
Gly < Asp $<$ Arg $<$ Lys
Asp $<$ Gly $<$ Lys $<$ Arg
Correct Option: , 4
Solution:
