Which of the following explains the unusually high melting points of amino acids?
A) their unusually high molecular weights
B) the polarity of their side chains
C) the presence of nitrogen atoms in their side chains
D) their existence as zwitterions in polar solvents

Question

Quizplus · Accepted Answer

Amino acids exist as zwitterions in polar solvents, which means they have both positive and negative charges. This strong dipole-dipole interaction results in a higher melting point compared to non-polar compounds.

Which of the Following Explains the Unusually High Melting Points