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प्रश्न
Name the main metal present in the following:
Chlorophyll
एका वाक्यात उत्तर
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उत्तर
Chlorophyll - Magnesium
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Differences Between Elements, Compounds, and Mixtures
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संबंधित प्रश्न
Give four examples of non-metallic elements.
What do you understand by :
Metalloids
Define:- Filtration
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
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 |
Differentiate between the following.
solution and suspension
What is centrifugation ? Also write the principle on which it works.
Name the techniques used to separate a solid from its solution.
Write the differences between elements and compounds and give an example for each.
