Which of the following groups contain all synthetic substances?
A. Nylon, Terylene, Wool
B. Cotton, Polycot, Rayon
C. PVC, Polythene, Bakelite
D. Acrylic, Silk, Wool
Answer:C
Which of the following groups contain all synthetic substances?
A. Nylon, Terylene, Wool B. Cotton, Polycot, Rayon C. PVC, Polythene, Bakelite D. Acrylic, Silk, Wool