A) cation
B) anion
C) Zwitterion
D) covalentform
Correct Answer: B
Solution :
In alkaline medium (high pH) amino acids exists as negatively charged particle (carboxyl group donates proton). \[{{H}_{2}}N-C{{H}_{2}}-COOH\xrightarrow{High\,pH}\] \[{{H}_{2}}N-C{{H}_{2}}-CO{{O}^{-}}\]
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