Plastics Which When Moulded Once, Cannot Be Softened by Heating

Q2: Fire proof plastic uniform worn by fire

Q3: The 4 R Principle is<br>A)Reduce, Reuse, Recycle,

Q4: The coating on modern non- stick cookware

Q5: Bakelite and Melamine are examples of<br>A)Thermosetting plastics<br>B)Silk<br>C)Nylon<br>D)Rayon

Q6: _ is an example of natural polymer<br>A)Rayon<br>B)Cellulose<br>C)Nylon<br>D)All

Q7: Polycot is made by mixing two types

Q8: Polythene and PVC are examples of<br>A)Bio degradable

Q9: A chain of small chemical units combined

Q10: Which of the following is Non-biodegradable<br>A)Woolen clothes<br>B)Plastic