MCQ Chapter 3 Synthetic Fibres and Plastics
MCQ Chapter 3 Synthetic Fibres and Plastics MCQ Chapter 3 Synthetic Fibres and Plastics Choose the correct answer: 1. A chain of small chemical units combined to form a large single unit is called ____: Poly Polymer Polythene None of the above 2. Polythene and PVC are examples of : Bio degradable substance Thermosetting plastics … Read more