What is the increasing order of pKa of the following amino acids in aqueous solution ? Gly Asp Lys Arg

Question

What is the increasing order of pKa of the following amino acids in aqueous solution ? Gly Asp Lys Arg (A) Arg < Lys < Gly < Asp (B) Asp < Gly < Arg < Lys (C) Gly < Asp < Arg < Lys (D) Asp < Gly < Lys < Arg

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-l7csludpx3nvpiey.jpg" /> Hence, the correct order is Asp < Gly < Lys < Arg

Q. What is the increasing order of $p K a$ of the following amino acids in aqueous solution ?
$Gl y A s p L ys A r g$

$A r g < L ys < Gl y < A s p$

$A s p < Gl y < A r g < L ys$

$Gl y < A s p < A r g < L ys$

$A s p < Gl y < L ys < A r g$

Hence, the correct order is
$A s p < Gl y < L ys < A r g$

Q. What is the increasing order of pKa of the following amino acids in aqueous solution ? GlyAspLysArg

Arg<Lys<Gly<Asp

Asp<Gly<Arg<Lys

Gly<Asp<Arg<Lys

Asp<Gly<Lys<Arg