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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
Give four examples of non-metallic elements.
What do you understand by :
Metalloids
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
Fill in the blank:
_________ is a process to obtain a very pure form of a solid dissolved in a liquid.
Write true or false
All pure substances have characteristic melting and boiling points.
What is centrifugation ? Also write the principle on which it works.
Water is a ______.
When two or more elements combine together they form ______.
Write the differences between mixture and compounds.
