NEET-XII-Chemistry

05: Biomolecules

page 3
Qstn# II-16 Prvs-QstnNext-Qstn
  • #16
    How do you explain the amphoteric behaviour of amino acids?
    Ans : In aqueous solution, the carboxyl group of an amino acid can lose a proton and the amino group can accept a proton to give a dipolar ion known as zwitter ion.



    Therefore, in zwitter ionic form, the amino acid can act both as an acid and as a base.





    Thus, amino acids show amphoteric behaviour.