__________ are produced by reacting polybasic acid (e.g. phthalic anhydride) with polyhydric alcohol (e.g., glycerol).
Low pressure Zeigler process of polythene manufacture
The repeating units of PTFE are
Contact lenses for eyes are made of perspex, which is nothing but
Answer : Option A
Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitfile copolymer with butadiene based elastomer, is a/an