MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 54 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. |
The electrophilic addition is done at _________ bonds. |
| A. | 2-2 |
| B. | 3-3 |
| C. | 4-4 |
| D. | 6-6 |
| Answer» E. | |
| 2. |
The hard super conductors are those in which the ideal behaviour is seen up to a ________ critical magnetic field. |
| A. | Higher |
| B. | Lower |
| C. | Moderate |
| D. | Zero |
| Answer» C. Moderate | |
| 3. |
The microwave absorptions are used for ________ |
| A. | Military radars |
| B. | Satellites |
| C. | Radars |
| D. | Electric irons |
| Answer» B. Satellites | |
| 4. |
To improve the composite of graphite _______ is used as catalyst. |
| A. | CO |
| B. | NI |
| C. | CO and NI |
| D. | TIO |
| Answer» D. TIO | |
| 5. |
CNT is _________ |
| A. | Non toxic |
| B. | Toxic |
| C. | Very Safe |
| D. | Not having graphene |
| Answer» C. Very Safe | |
| 6. |
Mega tubes are used for __________ |
| A. | Transport |
| B. | Chemical industries |
| C. | Laboratories |
| D. | Preparation of compounds |
| Answer» B. Chemical industries | |
| 7. |
CNT exhibits a property called ballistic condition. |
| A. | False |
| B. | True |
| Answer» C. | |
| 8. |
_________ of ceramic components are easier through nano structuring. |
| A. | Lubrication |
| B. | Coating |
| C. | Fabrication |
| D. | Wear |
| Answer» D. Wear | |
| 9. |
Natural graphite is mostly used in_________ |
| A. | Refrigerators |
| B. | Laboratories |
| C. | Catalyst |
| D. | Fuel |
| Answer» B. Laboratories | |
| 10. |
The chain, two dimensional and three dimensional polymers are formed under ______ |
| A. | Vacuum |
| B. | High pressure |
| C. | Low pressure |
| D. | No pressure |
| Answer» C. Low pressure | |
| 11. |
The __________ to the ceramics are superior coatings. |
| A. | Nano particles |
| B. | Nano powder |
| C. | Nano crystals coating |
| D. | Nano gel |
| Answer» D. Nano gel | |
| 12. |
Fullerenes are stable with __________ hybridization. |
| A. | sp |
| B. | sp2 |
| C. | sp3 |
| D. | sp4 |
| Answer» C. sp3 | |
| 13. |
The boron bucky balls are found in the year __________ |
| A. | 2001 |
| B. | 2002 |
| C. | 2003 |
| D. | 2007 |
| Answer» E. | |
| 14. |
After drying process the liquid phase is removed from the gel and ___________ is performed. |
| A. | Calcination |
| B. | De-oxygenation |
| C. | Oxygenation |
| D. | Hydrogenation |
| Answer» B. De-oxygenation | |
| 15. |
By nano scale distribution of the _______ in matrix improves the life and performance. |
| A. | Carbide |
| B. | Tungsten |
| C. | Hydrides |
| D. | Nitrites |
| Answer» C. Hydrides | |
| 16. |
The diameter of the nano wire is about __________ |
| A. | 10-6m |
| B. | 10-3m |
| C. | 10-8m |
| D. | 10-9m |
| Answer» E. | |
| 17. |
This functions as a super conductor at a critical temperature of ________ |
| A. | 30oK |
| B. | 60oK |
| C. | 90oK |
| D. | 120oK |
| Answer» D. 120oK | |
| 18. |
Most promising applications of the CNT is _________ |
| A. | Paper batteries |
| B. | Solar cells |
| C. | Space elevators |
| D. | Stab proof |
| Answer» C. Space elevators | |
| 19. |
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 | |
| 20. |
The ideal super conductors exhibit __________ |
| A. | Meissner effect |
| B. | Mesmeric effect |
| C. | Mesomeric effect |
| D. | Monomeric effect |
| Answer» B. Mesmeric effect | |
| 21. |
Plasma torch method is used in the year ________ |
| A. | 2005 |
| B. | 2004 |
| C. | 2002 |
| D. | 2001 |
| Answer» B. 2004 | |
| 22. |
The fullerenes that are larger in diameter than nano tubes and having walls of different thickness are ____________ |
| A. | Mega tubes |
| B. | Carbon nano tubes |
| C. | Bucky ball clusters |
| D. | Polymers |
| Answer» B. Carbon nano tubes | |
| 23. |
Spherical particles based on the multiple layers surrounding a buck ball core is called ___________ |
| A. | Nano onions |
| B. | Nano particles |
| C. | Nano clusters |
| D. | Nano materials |
| Answer» B. Nano particles | |
| 24. |
Coating the nano crystals with the ceramics is carried that leads to ________ |
| A. | Corrosion |
| B. | Corrosion resistant |
| C. | Wear and tear |
| D. | Soft |
| Answer» C. Wear and tear | |
| 25. |
Based on magnetic response super conductors are of __________ types. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 26. |
A suspended nano wire is a wire that is produced in the___________ |
| A. | Air medium |
| B. | Vaccum |
| C. | Low vaccum chamber |
| D. | High vaccum chamber |
| Answer» E. | |
| 27. |
Formation of an inorganic continuous network containing the metal centres with _________ |
| A. | Azo |
| B. | Oxo |
| C. | Nitro |
| D. | Hydro |
| Answer» C. Nitro | |
| 28. |
Super conductors are discovered in the year _______ |
| A. | 1900 |
| B. | 1991 |
| C. | 1911 |
| D. | 1905 |
| Answer» D. 1905 | |
| 29. |
Ideal super conductors completely become __________ at super conducting state. |
| A. | Diamagnetic |
| B. | Ferro magnetic |
| C. | Ferri magnetic |
| D. | Para magnetic |
| Answer» B. Ferro magnetic | |
| 30. |
The preferred opening angles of the nano cones are__________ |
| A. | 20, 30, 40 |
| B. | 20, 40, 60 |
| C. | 20, 40, 80 |
| D. | 20, 40, 50 |
| Answer» C. 20, 40, 80 | |
| 31. |
Nano wires are used in________ |
| A. | Transistors |
| B. | Resistors |
| C. | Capacitors |
| D. | Transducers |
| Answer» B. Resistors | |
| 32. |
The graphite is __________ |
| A. | Paramagnetic |
| B. | Diamagnetic |
| C. | Ferromagnetic |
| D. | Ferrimagnetic |
| Answer» C. Ferromagnetic | |
| 33. |
Industrial catalysts should have _________ surface area. |
| A. | High |
| B. | Low |
| C. | Moderate |
| D. | No |
| Answer» B. Low | |
| 34. |
The graphite is _________ anisotropic. |
| A. | Highly |
| B. | Lightly |
| C. | Not |
| D. | Very less |
| Answer» B. Lightly | |
| 35. |
The shifting of electrons in super conductors is prevented by _________ |
| A. | Quantum effect |
| B. | Threshold energy level |
| C. | Energy barrier |
| D. | Orbitals |
| Answer» B. Threshold energy level | |
| 36. |
CNT is used to make ___________ |
| A. | Paper batteries |
| B. | High voltage batteries |
| C. | Car batteries |
| D. | Clock batteries |
| Answer» B. High voltage batteries | |
| 37. |
When a method is used as an inclusion compound it is __________ |
| A. | Metallo fullerene |
| B. | Non metallic fullerene |
| C. | Buckminister fullerene |
| D. | Boron bucky balls |
| Answer» B. Non metallic fullerene | |
| 38. |
The same composition produced at ______ when the C60 is ozonated. |
| A. | 250K |
| B. | 257K |
| C. | 300K |
| D. | 296K |
| Answer» E. | |
| 39. |
A fullerene is any molecule composed entirely of the carbon not in the form of hollow ________ |
| A. | Sphere |
| B. | Tube |
| C. | Ellipsoid |
| D. | Cuboid |
| Answer» E. | |
| 40. |
Metal nano particles particularly _____________ nano particles are prepared by the chemical reduction method. |
| A. | Silver |
| B. | Gold |
| C. | Platinum |
| D. | Tungsten |
| Answer» B. Gold | |
| 41. |
One of the advantages of sol-gel method is able to get uniform and _________ powder. |
| A. | Micro size |
| B. | Large size |
| C. | Nano size |
| D. | Small size |
| Answer» E. | |
| 42. |
When the other atoms tapped inside fullerenes to form inclusion compounds is known as ________ |
| A. | Exohedral fullerenes |
| B. | Endohedral fullerenes |
| C. | Exothermic fullerenes |
| D. | Endothermic fullerenes |
| Answer» C. Exothermic fullerenes | |
| 43. |
The buckminister fullerene is naturally occurring element found in ________ |
| A. | Earth |
| B. | Soot |
| C. | Smoke |
| D. | Fog |
| Answer» C. Smoke | |
| 44. |
The nano particles from iron and palladium are used to produce ________ |
| A. | Magnets |
| B. | Magnetic lens |
| C. | Magneto meters |
| D. | Magnetic storage devices |
| Answer» E. | |
| 45. |
While synthesizing the nano cones the plasma temperature is above_________ |
| A. | 1000oC |
| B. | 1500oC |
| C. | 2000oC |
| D. | 2500oC |
| Answer» D. 2500oC | |
| 46. |
The bond length of the C60 is ________ |
| A. | 1.1 Ao |
| B. | 1.2 Ao |
| C. | 1.3 Ao |
| D. | 1.4 Ao |
| Answer» E. | |
| 47. |
Laser ablation method is developed by _______ |
| A. | Kelvin |
| B. | Richard Smalley |
| C. | Watson and crick |
| D. | Neils bohr |
| Answer» C. Watson and crick | |
| 48. |
Nano cones are the predominant structures made with_________ |
| A. | Carbon |
| B. | Nitrogen |
| C. | Hydrogen |
| D. | Silicon |
| Answer» B. Nitrogen | |
| 49. |
C60 is oxidised to form _______ |
| A. | C60O22 |
| B. | C60O24 |
| C. | C60O23 |
| D. | C60O |
| Answer» E. | |
| 50. |
Graphite is also called as______ |
| A. | White lead |
| B. | Black lead |
| C. | White coal |
| D. | Black coal |
| Answer» C. White coal | |