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प्रश्न
Write an answer to the following question in your own words.
Which precaution will you take while using the methods of distillation and separation by separating funnel?
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उत्तर
- Precautions during distillation:
- Ensure the proper setup of the apparatus, with all components securely fitted.
- Never heat a completely sealed system to prevent explosions.
- Use boiling chips to prevent bumping (rapid boiling causing liquid expulsion).
- Control the heating rate to avoid overheating and bumping.
- Precautions during separation using a separating funnel:
- Secure the funnel tightly on a stand in an upright position.
- Allow the liquid to remain undisturbed for proper separation.
- Remove the stopper carefully without disturbing the setup.
संबंधित प्रश्न
How will you separate a mixture containing kerosene and petrol (difference in their boiling points is more than 25°C), which are miscible with each other?
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What is the difference between simple distillation and fractional distillation?
Alcohol can be separated from water by ______.
Which of the tubes in Fig. 2.1 (a) and (b) will be more effective as a condenser in the distillation apparatus?
Match the type of mixture of compounds in Column I with the technique of separation/purification given in Column II.
| Column I | Column II |
| (i) Two solids which have different solubilities in a solvent and which do not undergo reaction when dissolved in it. | (a) Steam distillation |
| (ii) Liquid that decomposes at its boiling point | (b) Fractional distillation |
| (iii) Steam volatile liquid | (c) Simple distillation |
| (iv) Two liquids which have boiling points close to each other | (d) Distillation under reduced pressure |
| (v) Two liquids with large difference in boiling points. | (e) Crystallisation |
