Plexiglass (also called Lucite) because of its high optical transparency is used for making lenses. It is chemically_________________?
Correct answer: A. Polymethyl methacrylate (PMMA)
- A. Polymethyl methacrylate (PMMA)
- B. Polytetrafluroethylene (PTFE)
- C. Polycarbonates
- D. Phenolic resins
Explanation
Plexiglass or Lucite is polymethyl methacrylate, whose clear amorphous structure gives high optical transparency. PTFE is Teflon, whereas phenolic resins are opaque thermosetting materials.
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