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Chapter-2 - 11th - Experimental Techniques in Chemistry Preparation Multiple Questions and Answers.
| 26. | The rate of filtration can be increased by applying gentle suction | ||
| A. | Gooch crucible | ||
| B. | Filter paper | ||
| C. | Sintered crucible | ||
| D. | All of the above | ||
| 27. | Sintered crucible is made up of | ||
| A. | Plastic | ||
| B. | Glass | ||
| C. | Porcelain | ||
| D. | Fibre | ||
| 28. | The tip of funnel should touch the wall of the breaker in order to avoid | ||
| A. | Inconsistent flow of filtration | ||
| B. | splashing | ||
| C. | premature crystallization | ||
| D. | all of above | ||
| 29. | Separation of a solid from its hot saturated solution by cooling is called | ||
| A. | Vapourization | ||
| B. | Solvent extraction | ||
| C. | Filtration | ||
| D. | Crystallization | ||
| 30. | In crystallization if the solvent is inflammable then direct heating is | ||
| A. | Needed | ||
| B. | Avoided | ||
| C. | Depends on temperature | ||
| D. | Crystallization does not involve heating | ||
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