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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
State four difference between compounds and mixtures.
Define:- 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
Filtration
Fill in the blank:
_________ is a process to obtain a very pure form of a solid dissolved in a liquid.
Give one word answer
The process of transferring the clean liquid after the solid settles at the bottom of the container
Fill in the blank
A pure substance has definite _______ and constant _________.
Name the techniques used to separate a solid from its solution.
Write the differences between elements and compounds and give an example for each.
Write the differences between mixture and compounds.
