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Chapter-2 - 11th - Experimental Techniques in Chemistry Preparation Multiple Questions and Answers.
| 11. | Which of the following technique is used for the separation of insoluble particles from liquids? | ||
| A. | Filtration | ||
| B. | Crystallization | ||
| C. | Solvent extraction | ||
| D. | Chromatography | ||
| 12. | Which of the following way in used for classification of chromatography? | ||
| A. | Shape | ||
| B. | Phase | ||
| C. | Mechanism | ||
| D. | All | ||
| 13. | The fluted filter paper is used to | ||
| A. | Filter hot solution | ||
| B. | Avoid premature crystallization | ||
| C. | Increase the rate of filtration | ||
| D. | Decrease the area | ||
| 14. | Safe and the most reliable method of drying crystals is through | ||
| A. | Filter paper | ||
| B. | Vacuum desiccators | ||
| C. | Oven | ||
| D. | None of these | ||
| 15. | A substance having a very high vapour pressure at its melting point on heating will show | ||
| A. | Melting | ||
| B. | Sublimation | ||
| C. | Decomposition | ||
| D. | Condensation | ||
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