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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
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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:
Chlorophyll
Give four examples of non-metallic elements.
What do you understand by :
Metalloids
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:
________ and _______ are pure substances.
Name the substance you will add to speed up sedimentation.
Differentiate between the terms elements, compounds, and mixtures with suitable examples.
Water is a ______.
When two or more elements combine together they form ______.
Write the differences between mixture and compounds.
