MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Polymer Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How does Norbornene epoxide affect the rate of ROMP reaction if RuCl3 and alcohol mixture is used as a catalyst? |
| A. | increases |
| B. | decreases |
| C. | no change |
| D. | cannot be determined |
| Answer» B. decreases | |
| 2. |
Which of the following functional group on the ring system poisoned the Grubb’s catalyst for the first time? |
| A. | nitrile group |
| B. | oxygenate groups |
| C. | sulphate groups |
| D. | hydrate groups |
| Answer» B. oxygenate groups | |
| 3. |
The formation of a regular polymer with regular double bonds contributes to the usefulness of the ROMP process. State true or false. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 4. |
How does Norbornene epoxide affect the rate of ROMP reaction if RuCl3 and alcohol mixture is used as a catalyst? |
| A. | increases |
| B. | decreases |
| C. | no change |
| D. | cannot be determined |
| Answer» B. decreases | |
| 5. |
Which of the following substituent groups on the ring system can affect the Molybdenum or tungsten metathetic catalyst in ROMP? |
| A. | oxygenate group |
| B. | sulphate groups |
| C. | amine groups |
| D. | hydrate groups |
| Answer» B. sulphate groups | |
| 6. |
Which of the following functional group on the ring system poisoned the Grubb’s catalyst for the first time?$ |
| A. | nitrile group |
| B. | oxygenate groups |
| C. | sulphate groups |
| D. | hydrate groups |
| Answer» B. oxygenate groups | |
| 7. |
Which of the following features are dependent on the solvent used in ring opening metathesis polymerization reaction? |
| A. | rate of reaction |
| B. | molecular weight |
| C. | catalyst activity |
| D. | all of the mentioned |
| Answer» E. | |
| 8. |
What is the main driving force of the ring-opening metathesis polymerization reaction? |
| A. | solvent concentration |
| B. | relief of ring strain |
| C. | catalyst activity |
| D. | all of the mentioned |
| Answer» C. catalyst activity | |
| 9. |
What is the special feature of the olefin metathesis and metathesis polymerization? |
| A. | use of initiators |
| B. | use of catalysts with high potential |
| C. | use of solvents |
| D. | none of the mentioned |
| Answer» C. use of solvents | |