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प्रश्न
Why is it named so?
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उत्तर
It is named so, because earlier it was used to separate mixtures containing coloured components only but these days this technique is applied to colourless substances too.
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संबंधित प्रश्न
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
Sedimentation and decantation
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:
________ and _______ are pure substances.
Fill in the blank
Use of a __________ to separate the components of a mixture of solids is based on the difference in the size of the components.
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 |
Why is filtration a better technique than sedimentation and decantation ?
Name the techniques used to separate a solid from its solution.
When two or more elements combine together they form ______.
