# Which of the following polymers is not used to make cups and plates?

$\begin{array}{1 1}(a)\;\text{Urea formaldehyde resins}\\(b)\; \text{Polystyrene}\\(c)\;\text{Melamine formaldehyde resins}\\(d)\;\text{Glyptal}\end{array}$

Polystyrene is used for making hot drink cups.
Urea formaldehyde resis is used for making unbreakable cups and plates.
Melamine formaldehyde resin is used for making cups and plates which are quite hard and durable.
Glyptal is used for making for manufacture of paints and lacquers.
Hence (d) is the correct answer.
answered Mar 13, 2014