WCH15Topic 5.43 questions
Amines, amides, amino acids, peptides, proteins and condensation polymers.
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Original practice questions written in the style of the exam.
Glycine, , is the simplest amino acid. It melts (with decomposition) at about .
(a) Give the structure of the zwitterion of glycine and use it to explain the high melting temperature.
(b) Give the structure of the main glycine species in a solution of pH 1 and in a solution of pH 13.
A polyamide is made from hexanedioyl dichloride, , and 1,6-diaminohexane, .
(a) Give the repeat unit of the polymer.
(b) Name the type of polymerisation and identify the small molecule eliminated.