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  4. In alkaline medium, glycine exists predominantly as

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Q. In alkaline medium, glycine exists predominantly as

KCETKCET 2010Biomolecules

Solution:

In alkaline medium (high $pH$ ) amino acids exists as negatively charged particle (carboxyl group donates proton).

$H_2N-CH_2 -COOH \xrightarrow{\text{High ph} }H_2N-CH_2-COO^{-}$