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प्रश्न
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
उत्तर
Sedimentation and decantation : The settling down of suspended, insoluble, heavy, solid particles in a solid- liquid mixture when left undistrubed is called sedimentation.
The solid which settles at the bottom is called sediment while the clear liquid above it is called supernatant liquid.
The process of pouring out the clear liquid, without disturbing the sediment, is called decantation.
Example : A mixture of sand and water.
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संबंधित प्रश्न
Name the main metal present in the following:
Chalk
Name the main metal present in the following:
Chlorophyll
Define:- Filtration
Why is it named so?
Fill in the blank:
________ and _______ are pure substances.
Differentiate between the following.
solution and suspension
Name the substance you will add to speed up sedimentation.
Why is filtration a better technique than sedimentation and decantation ?
Write the differences between elements and compounds and give an example for each.
When two or more elements combine together they form ______.
