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प्रश्न
Why is filtration a better technique than sedimentation and decantation ?
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उत्तर
Filtration is a better technique than sedimentation and decantation because it can separate very fine insoluble particles as compared to the latter. Besides the filtrate obtained is generally pure solvent. In decantation when we pour out supernatant liquid there are chances of their getting mixed up with solute particles.
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संबंधित प्रश्न
Why is it named so?
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
By using a separating funnel
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________ and _______ are pure substances.
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_________ is a process to obtain a very pure form of a solid dissolved in a liquid.
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A pure substance has definite _______ and constant _________.
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 |
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Name the techniques used to separate a solid from its solution.
When two or more elements combine together they form ______.
