Glutomic acid `(A)` has isoelectric point `3.22`
(a) What is the most likely structure of the compound at its isoelectric point ?
(b) What is the most likely structure of monosodium glutamate.
`underset(underset(underset((A))(CH_(2))-CH_(2)-COOH)(|))(H_(2)N-CH-COOH)`.

Explanation

(a) `H_(3)overset(oplus)(N)-underset(underset(CH_(2)-CH_(2)-COOH)(|))(CH)-COO^(-)`
(b) `H_(2)N-underset(underset(CH_(2)-CH_(2)-COOH)(|))(CH)-COONa`.