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The melting points and solubility in water of amino acids are generally higher than that of the corresponding halo acids. Explain.

The melting points and solubility in water of amino acids are generally higher than that of the corresponding halo acids. Explain.

Grade:11

1 Answers

Suraj Prasad IIT Patna
askIITians Faculty 286 Points
9 years ago
Amino acids have two functional groups -NH2 and -COOH.Hence the amino acids exists as a dipolar ion (or) zwitter ion.As a result strong eletrostatic forces exists between zwitter ions.hence amino acids have high melting & boiling points.
H2N-CH(R)-COOH <--------------> +H3N-CH(R)-COO-
amino acid zwitter ion

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