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Bulletproof helmets are made from...

Bulletproof helmets are made from

A

lexan

B

saran

C

Glyptal

D

thiokol

Text Solution

Verified by Experts

The correct Answer is:
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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