MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
PHB is used in ____________ |
| A. | Agricultural applications |
| B. | Medical applications |
| C. | Manufacture of shampoo bottles |
| D. | Adhesives |
| Answer» D. Adhesives | |
| 2. |
Which of the following is not an example of synthetic biodegradable polymer? |
| A. | Polyvinyl alcohol |
| B. | Poly gamma-glutamic acid |
| C. | Polyanhydrides |
| D. | PHBV |
| Answer» C. Polyanhydrides | |
| 3. |
Which of the following is not an example of a natural biodegradable polymer? |
| A. | Collagen |
| B. | Polyvinyl alcohol |
| C. | Lignin |
| D. | Natural rubber |
| Answer» C. Lignin | |
| 4. |
Biodegradation will be more for ____________ |
| A. | More molecular weights and high crystallinity |
| B. | Low molecular weights and high crystallinity |
| C. | More molecular weights and less crystallinity |
| D. | Low molecular weights and less crystallinity |
| Answer» E. | |
| 5. |
Greater the hydrophilicity of the polymers ____________ is the rate of biodegradation. |
| A. | Larger |
| B. | Smaller |
| Answer» B. Smaller | |
| 6. |
Nylon-2-nylon-6 is a biodegradable polymer. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
What are the monomers of PHBV? |
| A. | 2-Hydroxybutanoic acid, 2-hydroxypentanoic acid |
| B. | 2-Hydroxybutanoic acid, 3-hydroxypentanoic acid |
| C. | 3-Hydroxybutanoic acid, 2-hydroxypentanoic acid |
| D. | 3-Hydroxybutanoic acid, 3-hydroxypentanoic acid |
| Answer» E. | |
| 8. |
Identify the biodegradable polymer from the following. |
| A. | Polyvinyl chloride |
| B. | Polypropylene |
| C. | Polystyrene |
| D. | Polylactic acid |
| Answer» E. | |
| 9. |
Which of the following is a non-biodegradable polymer? |
| A. | PHB |
| B. | PGA |
| C. | LDPE |
| D. | PHBV |
| Answer» D. PHBV | |
| 10. |
Select the incorrect statement from the following option? |
| A. | Biodegradable polymers are not suitable candidates in the recycling of commingled plastics |
| B. | Biodegradable polymers are very expensive |
| C. | Biodegradable polymers are an attractive option for addressing the solid waste and marine pollution |
| D. | Biodegradable polymers are easily available |
| Answer» E. | |
| 11. |
PHB is used in |
| A. | Agricultural applications |
| B. | Medical applications |
| C. | Manufacture of shampoo bottles |
| D. | Adhesives |
| Answer» D. Adhesives | |
| 12. |
Biodegradable polymers do not need to be land-filled, they will re-enter normal geo-chemical cycles over time. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
Which of the following is not an example of natural biodegradable polymer? |
| A. | Collagen |
| B. | Polyvinyl alcohol |
| C. | Lignin |
| D. | Natural rubber |
| Answer» C. Lignin | |
| 14. |
Biodegradation will be more for |
| A. | More molecular weights and high crystallinity |
| B. | Low molecular weights and high crystallinity |
| C. | More molecular weights and less crystallinity |
| D. | Low molecular weights and less crystallinity |
| Answer» E. | |
| 15. |
Greater the hydrophilicity of the polymers, ____________ is the rate of biodegradation. |
| A. | Larger |
| B. | Smaller |
| Answer» B. Smaller | |
| 16. |
Which of the following is not required for the biodegradation process? |
| A. | Micro-organism |
| B. | Environment conditions |
| C. | Adhesives |
| D. | Substrate |
| Answer» D. Substrate | |