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Bulletproof helmets are made fromA. lexanB. saranC. GlyptalD. thiokol

Answer» Correct Answer - A
Bulletproof helmets are made from lexan. It is a polycarbonate polymer nearly as tough as steel, it is used in bulletproof windows and as face plates in the helmets worn by astronauts. Lexan is made by condensing phosgene with a diphenol with the elimination of HCl.


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