Which of the following statements is not true? P. Nylon 2,6 is a biodegradable polymer. Q. Glyptal is the condensation polymer of ethylene glycol and phthalic acid. It is used in the manufacture of making of combs and computer discs. R. UFR is used in the making of unbreakable cups and laminated sheets.

P. Nylon 2–nylon 6 (nylon 2,6) is an alternating polyamide copolymer of glycine and amino caproic acid. It is biodegradable. Q. Glyptal is the condensation polymer of ethylene glycol and phthalic acid. It is used in the manufacture of paints and lacquers. Bakelite is the condensation polymer of phenol and formaldehyde. It is used in the making of combs, electrical switches, hardness of utensils and computer discs. R. Urea formaldehyde resin (UFR) is the condensation polymer of urea and formaldehyde and is used in the making of unbreakable cups and laminated sheets. Hence, only statement Q is not true.