MCQOPTIONS
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MCQOPTIONS
This section includes 5 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 | |