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प्रश्न
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
Magnetic separation
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उत्तर
Magnetic separation : This method is used when one of the components of the mixture is iron. Iron gets attracted towards a magnet and hence can be separated. Mixtures of iron and sulphur, iron and sand, etc., can be separated by moving a magnet over them. Iron gets attached to the magnet and is separated.
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संबंधित प्रश्न
Name the elements represented by the following symbols :
Hg, Pb, Au, Ag, Sn
If the symbol for Cobalt, Co, were written as CO, what would be wrong with it?
Give the symbol of the following element:
Lead
State the type of element for the following:
Zinc
Give the symbol of the following element:
Magnesium
Write the radical of the following valency:
Carbonate
Write the radical of the following valency:
Potassium
State the valency of the following metallic element and write symbol with the valency
Potassium
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Lead
write symbol with the variable valency
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Phosphate
