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प्रश्न
What is centrifugation ? Also write the principle on which it works.
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उत्तर
- Centrifugation : It is a technique used to speed up sedimentation of fine particles suspended in a solid-liquid mixture.
- Principle : The principle of centrifugation is that an object, when spun at high speed, experiences an outward force away from the centre of rotation.
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संबंधित प्रश्न
Name the main metal present in the following:
Chalk
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Filtration
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Sedimentation and decantation
Fill in the blank:
_________ is a process to obtain a very pure form of a solid dissolved in a liquid.
Fill in the blank
A pure substance has definite _______ and constant _________.
Fill in the blank.
_________ is used when the constituents of a mixture of solids have a difference in their weights.
Write true or false
All pure substances have characteristic melting and boiling points.
Name the substance you will add to speed up sedimentation.
Write the differences between elements and compounds and give an example for each.
Write the differences between mixture and compounds.
