Choose the correct answer: Bakelite is .A) good conductor of heatB) poor conductor of heatC) poor conductor of electricityD) Both B and C2. Which of the following is used for making parachute ropes ?A) AcrylicB) RayonC) PVCD) Nylon3. Choose the correct answer: The thermosetting plastic formed by condensation of phenol and formaldehyde is .A) BakeliteB) MelamineC) TeflonD) None of these4. Choose the correct answer: The synthetic plastic used for making insulation cover in electrical wires and cables is .A) PVCB) BakeliteC) MelamineD) Polythene5. Choose the correct answer: Natural polymer occurring in plant is .A) celluloseB) starchC) Both A and BD) silk6. Fill in the blanks: The chemicals which give fruits their smell are .7. Fill in the blanks: The synthetic fiber which works like wool is .8. Which of the following is thermosetting plastic?A) PVCB) PolytheneC) MelamineD) None of these9. Fill in the blanks: The most suitable polymer for the preparation of handles of cooking utensils is. 10. Fill in the blanks: Fibers consisting of many small repeating units are known as .11. Why is polyester not suitable for summer wear?12. State True or False: Cotton is a natural polymer.A) trueB) false13. Which of the following material is non – biodegradable?A) CottonB) WoodC) Woolen ClothesD) Plastic bags14. Choose the correct answer: First synthetic fiber formed from natural material is .A) TerycotB) RayonC) AcrylicD) Nylon15. Which of the following material take the longest time to degenerate?A) PaperB) Cotton clothC) Tin canD) Woolen Cloth16. State True or False: Thermoplastics are hard and brittle.A) trueB) false17. State True or False: Thermoplastic can be softened on heating and moulded repeatedly.A) trueB) false18. Choose the correct answer: Example of thermosetting plastic is .A) PVCB) PolytheneC) BakeliteD) None of these19. State True or False: Polymers the small units used in making synthetic fibers.A) trueB) false20. Choose the correct answer: The purest natural form of cellulose is .A) WoolB) cottonC) SilkD) Acrylicplz ans them

Question

Choose the correct answer: Bakelite is ​.A) good conductor of heatB) poor conductor of heatC) poor conductor of electricityD) Both B and C2. Which of the following is used for making parachute ropes ?A) AcrylicB) RayonC) PVCD) Nylon3. Choose the correct answer: The thermosetting plastic formed by condensation of phenol and formaldehyde is ​.A) BakeliteB) MelamineC) TeflonD) None of these4. Choose the correct answer: The synthetic plastic used for making insulation cover in electrical wires and cables is ​.A) PVCB) BakeliteC) MelamineD) Polythene5. Choose the correct answer: Natural polymer occurring in plant is ​.A) celluloseB) starchC) Both A and BD) silk6. Fill in the blanks: The chemicals which give fruits their smell are ​.7. Fill in the blanks: The synthetic fiber which works like wool is ​.8. Which of the following is thermosetting plastic?A) PVCB) PolytheneC) MelamineD) None of these9. Fill in the blanks: The most suitable polymer for the preparation of handles of cooking utensils is​. 10. Fill in the blanks: Fibers consisting of many small repeating units are known as ​.11. Why is polyester not suitable for summer wear?12. State True or False: Cotton is a natural polymer.A) trueB) false13. Which of the following material is non – biodegradable?A) CottonB) WoodC) Woolen ClothesD) Plastic bags14. Choose the correct answer: First synthetic fiber formed from natural material is ​.A) TerycotB) RayonC) AcrylicD) Nylon15. Which of the following material take the longest time to degenerate?A) PaperB) Cotton clothC) Tin canD) Woolen Cloth16. State True or False: Thermoplastics are hard and brittle.A) trueB) false17. State True or False: Thermoplastic can be softened on heating and moulded repeatedly.A) trueB) false18. Choose the correct answer: Example of thermosetting plastic is ​.A) PVCB) PolytheneC) BakeliteD) None of these19. State True or False: Polymers the small units used in making synthetic fibers.A) trueB) false20. Choose the correct answer: The purest natural form of cellulose is ​.A) WoolB) cottonC) SilkD) Acrylicplz ans them​

TuteeHUB · Accepted Answer

NA

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment