MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Solid State Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the advantage of using Czochralski, Bridgman- Stockbarger and Verneuil method? |
| A. | Gives small crystals |
| B. | High tech apparatus |
| C. | Rapid growth rates |
| D. | Uses plasma torch |
| Answer» D. Uses plasma torch | |
| 2. |
Which of the following method has been used to prepare the single crystals of CaO using plasma torch? |
| A. | Stockbarger method |
| B. | Zone melting method |
| C. | Verneuil flame fusion method |
| D. | Bridgman method |
| Answer» D. Bridgman method | |
| 3. |
When was the Verneuil flame fusion method first used? |
| A. | 1207 |
| B. | 2016 |
| C. | 1503 |
| D. | 1904 |
| Answer» E. | |
| 4. |
In the precipitation method for the growth of the crystal, the solvent melts are often known as___________ |
| A. | Electrolyte |
| B. | α-particle |
| C. | β- particle |
| D. | Fluxes |
| Answer» E. | |
| 5. |
Which one of the following principle has been used in the zone melting method? |
| A. | Impurities concentrate in the solid than in liquid phase |
| B. | Impurities concentrate in the liquid phase than in gaseous phase |
| C. | Impurities concentrate in the liquid phase than in the solid phase |
| D. | Impurities concentrate in the gaseous phase than in the solid phase |
| Answer» D. Impurities concentrate in the gaseous phase than in the solid phase | |
| 6. |
The diagram given below represents which of the following method? |
| A. | Bridgman method |
| B. | Stockbarger method |
| C. | Czochralski method |
| D. | Zone melting method |
| Answer» D. Zone melting method | |
| 7. |
WHEN_WAS_THE_VERNEUIL_FLAME_FUSION_METHOD_FIRST_USED??$ |
| A. | 1207 |
| B. | 2016 |
| C. | 1503 |
| D. | 1904 |
| Answer» E. | |
| 8. |
What is the advantage of using Czochralski, Bridgman- Stockbarger and Verneuil method?$ |
| A. | Gives small crystals |
| B. | High tech apparatus |
| C. | Rapid growth rates |
| D. | Uses plasma torch |
| Answer» D. Uses plasma torch | |
| 9. |
Which of the following method has been used to prepare the single crystals of CaO using plasma torch?$ |
| A. | Stockbarger method |
| B. | Zone melting method |
| C. | Verneuil flame fusion method |
| D. | Bridgman method |
| Answer» D. Bridgman method | |
| 10. |
What is the disadvantage of using a solution growth method for the growth of the crystals? |
| A. | Rapid growth rates |
| B. | Simple apparatus |
| C. | Slow growth rates |
| D. | Isothermal conditions |
| Answer» D. Isothermal conditions | |
| 11. |
In the precipitation method for the growth of the crystal, the solvent melts are often known as__________? |
| A. | Electrolyte |
| B. | α-particle |
| C. | β- particle |
| D. | Fluxes |
| Answer» E. | |
| 12. |
Which one of the following statements is correct for precipitation method? |
| A. | Growth of the crystal from a solvent of same composition to the crystals |
| B. | Growth of the crystal from the solute of same composition to the crystal |
| C. | Growth of the crystal from the gaseous species of different composition to the crystal |
| D. | Growth of the crystal from a solvent of different composition to the crystals. |
| Answer» E. | |
| 13. |
Which one of the following principle has been used in the zone melting method? |
| A. | Impurities concentrate in the solid than in liquid phase |
| B. | Impurities concentrate in the liquid phase than in gaseous phase |
| C. | Impurities concentrate in the liquid phase than in the solid phase |
| D. | Impurities concentrate in the gaseous phase than in the solid phase |
| Answer» D. Impurities concentrate in the gaseous phase than in the solid phase | |
| 14. |
In the zone melting method _____________ of the charge is melted at any one time. Fill up the correct option for the blank space from the choices given below. |
| A. | Large part |
| B. | Small part |
| C. | Solid part |
| D. | Anionic part |
| Answer» C. Solid part | |
| 15. |
Which of the following statements describes best the Bridgman method? |
| A. | Melt is outside the temperature furnace, solidification begins at the hotter end |
| B. | Melt is inside the temperature furnace, solidification occurs at the cooler end |
| C. | Melt is inside the temperature furnace, solidification occurs at the hotter end |
| D. | Solidification is achieved by passing the melt through a temperature gradient |
| Answer» C. Melt is inside the temperature furnace, solidification occurs at the hotter end | |
| 16. |
Which of the following statements is appropriate for Stockbarger method? |
| A. | Solidification is achieved by passing the melt through a concentration gradient |
| B. | Solidification is achieved by passing the melt through a temperature gradient |
| C. | Liquefaction is achieved by passing the melt through a concentration gradient |
| D. | Liquefaction is achieved by passing the melt through a temperature gradient |
| Answer» C. Liquefaction is achieved by passing the melt through a concentration gradient | |
| 17. |
In the process of Czochralski method which of the following relation is appropriate between the melt and the growing crystals? |
| A. | Melt and the growing crystals are usually not related to each other |
| B. | Melt and the growing crystals are usually rotated counterclockwise |
| C. | Melt and the growing crystals are usually rotated clockwise |
| D. | Melt and the growing crystals are usually kept at a constant position |
| Answer» C. Melt and the growing crystals are usually rotated clockwise | |