1.

In aqueous solution of amino acids mostly exists in,

Answer»

`NH_(2)CH( R)-COOH`
`NH_(2)-CH( R)-COO^-`
`H_(3)N^+CH(R )-COOH`
`H_(3)N^(+)-CH( R)-COO^-`

Solution :`H_(3)N^+-CH( R)-COO^-`


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