An optically active amino acid A can exist in three forms depending upon the pH of the međium. If the molecular formula of '(A)' is C_3 H_7 NO_2' write 1) structure of compound (A) in'aqueous medium. What are such ions called?. 2) In which medium will the cationic form of compound '(A)' exist? 3) In alkaline medium, towards which electrode Field will the compound migrate in electric field?

Explanation

Oprically'active amino acid with molecular formula 'C_3 H_2 NO_pm', is alamine.
FIGURE
Alamine can exist in three forms I, III, depending on the pH of the medium.
FIGURE
i) In nqueous nedium the compound A exists as a zwitter ion (II)
ii) The cationic form (I)'exists in acidie medium.
iii) It exists in the anionic form (III) in alkaline me- dium and will migrate towards the anode under the influence of an electrid field.