MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Separation Processes knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is untrue about Polytetrafluoroethylene? |
| A. | Branched chain |
| B. | Highly crystalline |
| C. | Exceptional thermal stability |
| D. | High degree of polymerization |
| Answer» B. Highly crystalline | |
| 2. |
Polysulphones contain the _______ group. |
| A. | S |
| B. | CO |
| C. | SO2 |
| D. | SO4 |
| Answer» D. SO4 | |
| 3. |
WHICH_OF_THE_FOLLOWING_IS_UNTRUE_ABOUT_POLYTETRAFLUOROETHYLENE??$ |
| A. | Branched chain |
| B. | Highly crystalline |
| C. | Exceptional thermal stability |
| D. | High degree of polymerization |
| Answer» B. Highly crystalline | |
| 4. |
Polysulphones contain the _______ group? |
| A. | S |
| B. | CO |
| C. | SO<sub>2</sub> |
| D. | SO<sub>4</sub> |
| Answer» D. SO<sub>4</sub> | |
| 5. |
Which of the following true about polycarbonates? |
| A. | Amorphous |
| B. | Not ductile |
| C. | Fragile |
| D. | Thermosetting |
| Answer» B. Not ductile | |
| 6. |
Which of the following is not a property of aromatic polyamides? |
| A. | Low melting |
| B. | Crystalline |
| C. | High resistance to solvents |
| D. | Long term thermal stability |
| Answer» B. Crystalline | |
| 7. |
To increase the strength of polyisoprene ,it is vulcanized with: |
| A. | Rubber |
| B. | Phosphorous |
| C. | Sulphur |
| D. | Sodium |
| Answer» D. Sodium | |
| 8. |
The reaction product of cellulose and acetic anhydride is: |
| A. | Acetic cellulose |
| B. | Cellulose acetate |
| C. | Cellulose diacetate |
| D. | Cellulose triacetate |
| Answer» E. | |
| 9. |
What is a glass transition temperature? |
| A. | When a rubbery polymer turns into glass |
| B. | When a glassy polymers turns into rubbery polymer |
| C. | When the polymer becomes a melt |
| D. | When the melting point is reached |
| Answer» C. When the polymer becomes a melt | |
| 10. |
Which of the following is not a property of thermosetting polymer? |
| A. | Highly crosslinked |
| B. | Decompose on increase in temperature |
| C. | Insoluble in organic solvents |
| D. | Amorphous |
| Answer» E. | |
| 11. |
What are the linear chain polymers that get soften on increase in temperature? |
| A. | Thermosetting |
| B. | Thermoplastic |
| C. | Crystalline |
| D. | Amorphous |
| Answer» C. Crystalline | |
| 12. |
By which reaction are synthetic polymers not made? |
| A. | Condensation |
| B. | Free radical addition |
| C. | Ion-catalyzed addition |
| D. | Hydroxylation |
| Answer» E. | |