What is bakelite and melamine?
Bakelite:
Melamine:
Which of the following plastics is used for making electric switches ?
(a) teflon (b) melamine (c) PET (d) bakelite
Which of the following polymers are condensation polymers?
(a) Bakelite
(b) Teflon
(c) Buty rubber
(d) Melamine formaldehyde resin
The non-stick coating on frying pans is that of a plastic called :
(a) polyvinyl chloride (b) melamine (c) bakelite (d) teflon
The plastic which is coated on the uniforms of fireman to make them fire -resistant is :
(a) bakelite (b) polythene (c) teflon (d) melamine