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प्रश्न
Name the main metal present in the following:
Haemoglobin
Name the metals present in haemoglobin.
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उत्तर
Iron
संबंधित प्रश्न
State four difference between compounds and mixtures.
Fill in the blank
_______ are made up of same kind of atoms.
Fill in the blank:
_________ is a process to obtain a very pure form of a solid dissolved in a liquid.
Give one word answer
The process of transferring the clean liquid after the solid settles at the bottom of the container
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 |
How can you separate iron metal from non-magnetic impurities ?
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.
