MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 21 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Plasma torch method produces ______ of CNT per minute. |
| A. | 1Gms |
| B. | 2Gms |
| C. | 3Gms |
| D. | 4Gms |
| Answer» C. 3Gms | |
| 2. |
Plasma torch method is similar to the __________ |
| A. | Laser ablation |
| B. | Arc discharge |
| C. | Chemical vapour decomposition |
| D. | Electrolysis |
| Answer» C. Chemical vapour decomposition | |
| 3. |
Plasma torch method is used in the year ________ |
| A. | 2005 |
| B. | 2004 |
| C. | 2002 |
| D. | 2001 |
| Answer» B. 2004 | |
| 4. |
To improve the composite of graphite _______ is used as a catalyst. |
| A. | CO |
| B. | NI |
| C. | CO and NI |
| D. | TIO |
| Answer» D. TIO | |
| 5. |
A water cooled surface is used in the process to collect __________ |
| A. | Nano particles |
| B. | Nano tubes |
| C. | Nano spheres |
| D. | Nano sheets |
| Answer» C. Nano spheres | |
| 6. |
Laser ablation method is developed by _______ |
| A. | Kelvin |
| B. | Richard Smalley |
| C. | Watson and crick |
| D. | Neils bohr |
| Answer» C. Watson and crick | |
| 7. |
A_WATER_COOLED_SURFACE_IS_USED_IN_THE_PROCESS_TO_COLLECT___________?$ |
| A. | Nano particles |
| B. | Nano tubes |
| C. | Nano spheres |
| D. | Nano sheets |
| Answer» C. Nano spheres | |
| 8. |
Plasma torch method is used in the year ________$ |
| A. | 2005 |
| B. | 2004 |
| C. | 2002 |
| D. | 2001 |
| Answer» B. 2004 | |
| 9. |
To improve the composite of graphite _______ is used as catalyst.$ |
| A. | CO |
| B. | NI |
| C. | CO and NI |
| D. | TIO |
| Answer» D. TIO | |
| 10. |
The substrate is heated to ________ |
| A. | 200C |
| B. | 300C |
| C. | 400C |
| D. | 700C |
| Answer» E. | |
| 11. |
Chemical vapour decomposition is developed in an year ________ |
| A. | 2001 |
| B. | 2002 |
| C. | 2006 |
| D. | 2007 |
| Answer» E. | |
| 12. |
Plasma torch method is produces ______ of CNT per minute. |
| A. | 1Gms |
| B. | 2Gms |
| C. | 3Gms |
| D. | 4Gms |
| Answer» C. 3Gms | |
| 13. |
Plasma torch method is similar to the __________ |
| A. | Laser ablation |
| B. | Arc discharge |
| C. | Chemical vapour decomposition |
| D. | Electrolysis |
| Answer» C. Chemical vapour decomposition | |
| 14. |
Laser ablation method is developed by ______? |
| A. | Kelvin |
| B. | Richard Smalley |
| C. | Watson and crick |
| D. | Neils bohr |
| Answer» C. Watson and crick | |
| 15. |
The yield of the laser ablation is ______________ |
| A. | 30% |
| B. | 70% |
| C. | 80% |
| D. | 90% |
| Answer» C. 80% | |
| 16. |
The carbon contained in the negative electrode sublimates. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 17. |
The current used in the arc discharge method is about _________ |
| A. | 100mA |
| B. | 200mA |
| C. | 300mA |
| D. | 400mA |
| Answer» B. 200mA | |
| 18. |
In how many methods the CNT can be prepared? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 19. |
Carbon nano tubes are first observed in _________ |
| A. | 1992 |
| B. | 1991 |
| C. | 1990 |
| D. | 1993 |
| Answer» C. 1990 | |
| 20. |
Carbon nano tubes are also called as ________ |
| A. | Bucky tubes |
| B. | Bulky tubes |
| C. | Bulk tubes |
| D. | Buck balls |
| Answer» B. Bulky tubes | |
| 21. |
Carbon nano tubes are the sheets of graphite about ________ |
| A. | 0.1nm |
| B. | 0.2nm |
| C. | 0.3nm |
| D. | 0.4nm |
| Answer» E. | |