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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
Filtration
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उत्तर
Filtration : The process of separating insoluble solid particles from a liquid by allowing it to pass through a filter is called Alteration. These filters allow liquids to pass through them but not solids. The insoluble solid left on the filter is called the residue, while the liquid which passes through the filter is called the filtrate. Mixtures like chalk and water, clay and water, tea and tea leaves, sawdust and water, etc., are separated by this method.
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संबंधित प्रश्न
Name the main metal present in the following:
Chalk
Name the main metal present in the following:
Chocolate wrappers
What do you understand by :
Metalloids
State four difference between compounds and mixtures.
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:
________ and _______ are pure substances.
Fill in the blank
A pure substance has definite _______ and constant _________.
Write true or false
All pure substances have characteristic melting and boiling points.
Match the columns.
| Column A | Column B |
| 1. To separate grain from chaff | a. filtration |
| 2. To seperat sawdust from water | b. sedimentation and decantation |
| 3. To separate iodine from sodium chloried | c. winnowing |
| 4. To separate iron fillings from sand | d. sublimation |
| 5.It is used to separate sand and water | e.magnetic separation |
| f. handpiicking |
Write the differences between mixture and compounds.
