CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2011

  • question_answer
    In an alkaline medium, glycine predominantly exists as/in a/an

    A)  cation                                  

    B)  anion

    C)  Zwitterion         

    D)  covalent form

    Correct Answer: B

    Solution :

    In alkaline medium (high pH) amino acids exists as negatively charged particle (carboxyl group donates proton). \[{{H}_{2}}N-C{{H}_{2}}-COOH\xrightarrow{High\text{ }pH}\]\[{{H}_{2}}N-C{{H}_{2}}-CO{{O}^{-}}\]


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