Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The increasing order of pKa of the following amino acids in aqueous solution is :
Gly Asp Lys Arg
Text Solution
Verified by ExpertsThe correct answer is:
C
Here, aspartic acid is an acidic and glycine is a neutral amino acid while lysine and arginine are basic amino acids. Also, arginine is more basic due to be the stronger basic functional groups.
The order of 
value is directly proportional to the basic strength of amino acids, i.e., Arg> Lys >Gly> Asp.
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