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Questions and Answers
What is a zwitterion in chemistry?
What is a zwitterion in chemistry?
- A molecule that cannot isomerize to an all-neutral form
- A molecule containing only negatively charged functional groups
- A molecule containing an equal number of positively and negatively charged functional groups (correct)
- A molecule containing only positively charged functional groups
What is the stoichiometry of tautomerism of amino acids?
What is the stoichiometry of tautomerism of amino acids?
- RCH(NH2)CO2H ⇌ RCN(N+H3)CO−2 (correct)
- RCH(NH2)CO2H ⇌ RCN(NH2)CO2H
- RCH(NH2)CO2H ⇌ RCNHCO2H
- RCH(NH2)CO2H ⇌ RCH2(NH2)CO2H
How is the zwitterion stabilized in aqueous solution?
How is the zwitterion stabilized in aqueous solution?
- By repelling solvent water molecules
- By donating electrons to solvent water molecules
- By forming covalent bonds with solvent water molecules
- By hydrogen bonding with solvent water molecules (correct)
What is the ratio of the concentrations of the two species in solution for tautomerism of amino acids?
What is the ratio of the concentrations of the two species in solution for tautomerism of amino acids?
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What is the role of some amino acids in forming mixed salts?
What is the role of some amino acids in forming mixed salts?
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