.3. When should funnel be removed from the mixture which is being heated? Give reason. 4. Name two substances which can be separated by the same technique as ammonium chloride. 5. Name the various techniques used in the experiment to separate components of the given mixture. State the property of each substance that forms the basis of selecting these techniques.
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3.the funnel should be removed from the mixture which is being heated at the time of the formation of the vapour.
Explanation:
- this is because during formation of the vapour there is huge amount of heat generated which may hamper the funnel.
- 4.Ammonium chloride is a sublimable substance. two other substances which can be separated by the same technique are naphthalene and camphor both of which are also sublimable in nature.
- 5.the various techniques which are used in the experiment to separate the components of a mixture are sedimentation and decantation, magnetic separation, distillation and fractional distillation, centrifugation, electrolytic separation.
- Sedimentation works on the principle that the two substances have different rate of settling down
- in case of magnetic separation one of the substance is magnetic in nature.
- In case of distillation and fractional distillation there is difference in the boiling point of the two substances.
- In case of centrifugation there is a difference in the density of the substance.
- Electrolytic separation take place when one of the the component is conductor of electricity whereas the other is not.
To know more about magnetic separation,
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