MCQOPTIONS
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MCQOPTIONS
This section includes 26 Mcqs, each offering curated multiple-choice questions to sharpen your Mass Transfer knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the melting point of palladium? |
| A. | 1527 K |
| B. | 1627 K |
| C. | 1727 K |
| D. | 1827 K |
| Answer» E. | |
| 2. |
Which one is having a minimum melting point? |
| A. | Tin |
| B. | Iron pure |
| C. | Germanium |
| D. | Gold |
| Answer» D. Gold | |
| 3. |
What is the melting point of mercury? |
| A. | 3570C |
| B. | -390C |
| C. | 00C |
| D. | 1000C |
| Answer» C. 00C | |
| 4. |
What is the molar heat of fusion (kJ/mol) of water? |
| A. | 1.3 |
| B. | 0.84 |
| C. | 7.61 |
| D. | 6.01 |
| Answer» E. | |
| 5. |
The temperature remains constant during phase change because the increased kinetic energy is used to overcome the cohesive forces in the liquid. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Molar heat of fusion is defined as ____________ |
| A. | Energy required to melt one gram of solid |
| B. | Energy required to melt one mole of solid |
| C. | Energy required to melt one kilogram of solid |
| D. | Energy required to melt ten moles of solid |
| Answer» C. Energy required to melt one kilogram of solid | |
| 7. |
The melting point of ice is ____________ |
| A. | 00C |
| B. | 1000C |
| C. | 40C |
| D. | -40C |
| Answer» B. 1000C | |
| 8. |
When the solid and liquid phase are in equilibrium, the temperature ____________ |
| A. | Increases gradually |
| B. | Decreases gradually |
| C. | Remains constant |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 9. |
The temperature at which solid and liquid coexist in equilibrium is called ____________ |
| A. | Melting point of liquid |
| B. | Freezing point of liquid |
| C. | Freezing point of solid |
| D. | All of the mentioned |
| Answer» C. Freezing point of solid | |
| 10. |
The purity of the compound is confirmed by ____________ |
| A. | Its melting point and boiling point |
| B. | Chromatographic technique |
| C. | Spectroscopy |
| D. | All of the mentioned |
| Answer» E. | |
| 11. |
THE_MOLAR_HEAT_OF_FUSION_(KJ/MOL)_OF_WATER_IS?$ |
| A. | 1.3 |
| B. | 0.84 |
| C. | 7.61 |
| D. | 6.01 |
| Answer» E. | |
| 12. |
WHAT_IS_THE_MELTING_POINT_OF_TIN??$ |
| A. | 505 K |
| B. | 605 K |
| C. | 705 K |
| D. | 805 K |
| Answer» B. 605 K | |
| 13. |
The melting point of mercury is$ |
| A. | 357<sup>0</sup>C |
| B. | -39<sup>0</sup>C |
| C. | 0<sup>0</sup>C |
| D. | 100<sup>0</sup>C |
| Answer» C. 0<sup>0</sup>C | |
| 14. |
Which_one_is_having_a_minimum_melting_point?$ |
| A. | Titanium |
| B. | Zinc |
| C. | Uranium |
| D. | Rhodium |
| Answer» C. Uranium | |
| 15. |
The temperature remains constant during phase change because the increased kinetic energy is used to overcome the cohesive forces in the liquid? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
Which one is having a maximum melting point? |
| A. | Palladium |
| B. | Magnesium |
| C. | Platinum pure |
| D. | Lead |
| Answer» D. Lead | |
| 17. |
Molar heat of fusion is defined as |
| A. | Energy required to melt one gram of solid |
| B. | Energy required to melt one mole of solid |
| C. | Energy required to melt one kilogram of solid |
| D. | Energy required to melt ten moles of solid |
| Answer» C. Energy required to melt one kilogram of solid | |
| 18. |
The melting point of ice is |
| A. | 0<sup>0</sup>C |
| B. | 100<sup>0</sup>C |
| C. | 4<sup>0</sup>C |
| D. | -4<sup>0</sup>C |
| Answer» B. 100<sup>0</sup>C | |
| 19. |
What is the melting point of nichrome? |
| A. | 1572 K |
| B. | 1672 K |
| C. | 1772 K |
| D. | 1872 K |
| Answer» C. 1772 K | |
| 20. |
When the solid and liquid phase are in equilibrium, the temperature |
| A. | Increases gradually |
| B. | Decreases gradually |
| C. | Remains constant |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 21. |
What is the melting point of germanium? |
| A. | 1211 K |
| B. | 1311 K |
| C. | 1411 K |
| D. | 1511 K |
| Answer» B. 1311 K | |
| 22. |
The temperature at which solid and liquid coexist in equilibrium is called |
| A. | Melting point of liquid |
| B. | Freezing point of liquid |
| C. | Freezing point of solid |
| D. | All of the mentioned |
| Answer» C. Freezing point of solid | |
| 23. |
Which one is having the highest melting point? |
| A. | Bismuth |
| B. | Beryllium |
| C. | Cadmium |
| D. | Copper pure |
| Answer» C. Cadmium | |
| 24. |
Select the correct statement from the following options. |
| A. | The transformation of solid to liquid is called melting and the reverse process is called freezing |
| B. | The transformation of solid to liquid is called freezing and the reverse process is called melting |
| C. | The transformation of liquid to solid is called melting and the reverse process is called freezing |
| D. | None of the mentioned |
| Answer» B. The transformation of solid to liquid is called freezing and the reverse process is called melting | |
| 25. |
What is the melting point of cobalt? |
| A. | 1449 K |
| B. | 1559 K |
| C. | 1669 K |
| D. | 1769 K |
| Answer» E. | |
| 26. |
What is the melting point of chromium? |
| A. | 2118 K |
| B. | 2218 K |
| C. | 2318 K |
| D. | 2418 K |
| Answer» B. 2218 K | |