Answer:
Amino acids are dipolar in nature andhave
strong dipolar interactions. Therefore, these have high meltingpoints. When
dissolved in water, these form hydrogen bonds with watermolecules, therefore,
these are soluble in water, (except at isoelectricpoint, where they have least
solubility) In case of halo acids, these arenot dipolar. Only their carboxyl
group is involved in hydrogen bonding,not the halogen atom. Therefore, halo
acids, have lower melting pointsand lesser solubility than amino acids.
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