Zwitterions and Betaines
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Questions and Answers

Which term is synonymous with zwitterion?

  • Ionic compound
  • Inner salt (correct)
  • Polar molecule
  • Neutral molecule

    • What is a zwitterion?

  • A molecule containing an equal number of positively and negatively charged functional groups (correct)
  • A molecule with alternating positive and negative charges
  • A molecule that lacks charged functional groups
  • A molecule with a single charged functional group

    • What prevents betaines from isomerizing to an all-neutral form?

  • High pH environment
  • Absence of hydrogen bonding
  • Lack of functional groups
  • Presence of a quaternary ammonium group (correct)

    • What stoichiometry represents the tautomerism of amino acids?

    <p>RCH(NH2)CO2H ⇌ RCN(N+H3)CO−2</p> Signup and view all the answers

    How is the zwitterion stabilized in aqueous solution?

    <p>By hydrogen bonding with solvent water molecules</p> Signup and view all the answers

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