(a) Polyhydroxyamide is a fire-resistant polyamide which is formed from the two monomers, F and G. [Figure: Structure of monomer F, HO₂C-(C₆H₄)-CO₂H (benzene-1,4-dicarboxylic acid)] [Figure: Structure of monomer G, H₂N-(C₆H₂OH)-NH₂ (2,5-diaminophenol)]
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