Q
Plexiglass (also called Lucite) because of its high optical transparency is used for making lenses. It is chemically_________________?
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A
A. Polymethyl methacrylate (pmma)
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B
B. Polytetrafluroethylene (ptfe)
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C
C. Polycarbonates
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D
D. Phenolic resins
Correct Answer:
A. A. Polymethyl methacrylate (pmma)