Which one of the following is a natural polymer?
A. cellulose, silk
B. PVC, Polythene
C. Buna – N, Buna – S
D. Bakelite, Nylon 6,6
Answer:A
Which one of the following is a natural polymer?
A. cellulose, silk B. PVC, Polythene C. Buna – N, Buna – S D. Bakelite, Nylon 6,6