Chemistry · Alkenes: Geometrical isomerism, mechanism of electrophilic addition, addition of hydrogen, halogens, water, hydrogen halides (Markownikoff's and peroxide effect), Ozonolysis and polymerization
Which of the following is used as a substitute of glass?
Which of the following is used as a substitute of glass?
- A. Glyptal
- B. Urea formaldehyde resin
- C. РММА
- D. All
Step-by-step solution
РММА (polymethyl methacrylate, PMMA) is a transparent thermoplastic known as acrylic glass, used as a lightweight, shatter-resistant substitute for glass. Glyptal is an alkyd resin used in coatings, and urea formaldehyde resin is used in adhesives and molded articles, not as a glass substitute. Thus, only PMMA is correct.
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